# \#Physics-Mass

**URL:** https://forums.unrealengine.com/tag/physics-mass/1226.md

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## [Physics Constraint Force on Moving Object](https://forums.unrealengine.com/t/physics-constraint-force-on-moving-object/489253)

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**Author:** [@AquaRex](https://forums.unrealengine.com/u/AquaRex)\
**Replies:** 1\
**Last updated:** [May 14, 2026, 2:51pm UTC](https://forums.unrealengine.com/t/physics-constraint-force-on-moving-object/489253 "2026-05-14T14:51:36Z")

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Hi I’m working on a project where I have a Crane that can pick up items. The hook of the crane goes through a loop and physically lifts the object up. The physics constraint is constraining the Crane Hook to the Crane …

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## [How to get the mass of an overridden static mesh?](https://forums.unrealengine.com/t/how-to-get-the-mass-of-an-overridden-static-mesh/2685949)

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**Author:** [@Extrahdmi](https://forums.unrealengine.com/u/Extrahdmi)\
**Replies:** 0\
**Last updated:** [December 18, 2025, 7:38am UTC](https://forums.unrealengine.com/t/how-to-get-the-mass-of-an-overridden-static-mesh/2685949 "2025-12-18T07:38:47Z")

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Although the Mass value of a Static Mesh can be freely set, it cannot be obtained unless simulation is enabled. I just want to reference the set numerical value as a parameter, so why can’t I easily obtain it like I can…

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## [unreal engine physics constraint issues](https://forums.unrealengine.com/t/unreal-engine-physics-constraint-issues/858942)

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**Author:** [@mtoon](https://forums.unrealengine.com/u/mtoon)\
**Replies:** 2\
**Last updated:** [March 16, 2025, 8:20pm UTC](https://forums.unrealengine.com/t/unreal-engine-physics-constraint-issues/858942 "2025-03-16T20:20:45Z")

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one big issue with physics constraint is that they don’t take mass in account here i got a 1kg object moving with ease 1000kg. i also have this problem with limited constraint where i get strange movement besi…

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## [Overwrite player pawn mass - does it work?](https://forums.unrealengine.com/t/overwrite-player-pawn-mass-does-it-work/2347228)

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**Author:** [@TheoT](https://forums.unrealengine.com/u/TheoT)\
**Replies:** 0\
**Last updated:** [February 20, 2025, 8:00pm UTC](https://forums.unrealengine.com/t/overwrite-player-pawn-mass-does-it-work/2347228 "2025-02-20T20:00:02Z")

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Set Mass Overwrite in Kg to player pawn (Overwrite Mass true) yet it does not actually change the mass of the player? I’ve tried to both Capsule component and Mesh. What am I doing wrong or is this a bug?

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## [Density setting does nothing on Geometry Collection.](https://forums.unrealengine.com/t/density-setting-does-nothing-on-geometry-collection/2219676)

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**Author:** [@turbotanaka](https://forums.unrealengine.com/u/turbotanaka)\
**Replies:** 2\
**Last updated:** [December 23, 2024, 6:52am UTC](https://forums.unrealengine.com/t/density-setting-does-nothing-on-geometry-collection/2219676 "2024-12-23T06:52:11Z")

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I’ve tried using the Physical Material to set the weight of the objects, but no matter how much I change the density, all the weights remain the same. Enabling Density from Physics material and overriding the object’s p…

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## [How to fix this crazy spinning mesh?](https://forums.unrealengine.com/t/how-to-fix-this-crazy-spinning-mesh/1897471)

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**Author:** [@MikelKram](https://forums.unrealengine.com/u/MikelKram)\
**Replies:** 9\
**Last updated:** [June 10, 2024, 8:11pm UTC](https://forums.unrealengine.com/t/how-to-fix-this-crazy-spinning-mesh/1897471 "2024-06-10T20:11:11Z")

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These capsule collision settings don’t help: ' Mesh settings don’t help:

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## [Physics Simulation with Connected Geometries Linked by 'Physics Constraints'](https://forums.unrealengine.com/t/physics-simulation-with-connected-geometries-linked-by-physics-constraints/1766688)

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**Author:** [@seunghwan980303](https://forums.unrealengine.com/u/seunghwan980303)\
**Replies:** 0\
**Last updated:** [March 22, 2024, 1:21pm UTC](https://forums.unrealengine.com/t/physics-simulation-with-connected-geometries-linked-by-physics-constraints/1766688 "2024-03-22T13:21:43Z")

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I’m testing a basic simulation using Unreal Engine’s chaos physics engine. I’ve made a blueprint to apply torque, measure angular velocity and acceleration, and calculate mass moment of inertia. In Case 1, where there’…

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## [The 'mass' and 'weight' of things?](https://forums.unrealengine.com/t/the-mass-and-weight-of-things/356667)

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**Author:** [@anonymous\_user\_4071fa6e1](https://forums.unrealengine.com/u/anonymous_user_4071fa6e1)\
**Replies:** 3\
**Last updated:** [March 5, 2024, 2:08pm UTC](https://forums.unrealengine.com/t/the-mass-and-weight-of-things/356667 "2024-03-05T14:08:51Z")

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I’ve been experimenting with mass/physics and I must say I’m a little perplexed by the behaviour. E.g. in the rolling ball template, The boxes (TemplateCube\_Rounded) appear to have a (default) mass of 442 kg / mass\_sca…

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## [Setting the mass of an object?](https://forums.unrealengine.com/t/setting-the-mass-of-an-object/293697)

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**Author:** [@anonymous\_user\_c6c5dc0d](https://forums.unrealengine.com/u/anonymous_user_c6c5dc0d)\
**Replies:** 4\
**Last updated:** [October 1, 2023, 4:46pm UTC](https://forums.unrealengine.com/t/setting-the-mass-of-an-object/293697 "2023-10-01T16:46:49Z")

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I have created a project from “RealisticRendering” I have selected SM\_BOWL\_29 I raise it up a little, enable physics simulation and watch it fall. However the mass is greyed out. How do I set the mass of an object?

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## [Ragdoll flying crazy](https://forums.unrealengine.com/t/ragdoll-flying-crazy/440842)

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**Author:** [@Ben\_CY](https://forums.unrealengine.com/u/Ben_CY)\
**Replies:** 5\
**Last updated:** [July 24, 2023, 5:42pm UTC](https://forums.unrealengine.com/t/ragdoll-flying-crazy/440842 "2023-07-24T17:42:27Z")

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When i enable the full body simulate physics, the character will fly and spining like crazy just like the video below. I not sure what factor causing this problem because it is not happened at the beginning…

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## [Physics Handle problems](https://forums.unrealengine.com/t/physics-handle-problems/295827)

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**Author:** [@Blakey876\_1](https://forums.unrealengine.com/u/Blakey876_1)\
**Replies:** 6\
**Last updated:** [January 5, 2023, 1:14pm UTC](https://forums.unrealengine.com/t/physics-handle-problems/295827 "2023-01-05T13:14:27Z")

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I have made a pickup system using the physics gun from the BP content examples. My only problem is, if I move my aim really fast and release the item it shoots off at incredible speed. How can I limit this super human st…

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## [Enemy character pushes through everything](https://forums.unrealengine.com/t/enemy-character-pushes-through-everything/445328)

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**Author:** [@SkyChrome](https://forums.unrealengine.com/u/SkyChrome)\
**Replies:** 4\
**Last updated:** [December 7, 2022, 8:43pm UTC](https://forums.unrealengine.com/t/enemy-character-pushes-through-everything/445328 "2022-12-07T20:43:08Z")

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See, the problem I’m having is that the root Capsule Component of my enemy is not the type of collision shape I need. Thus I tried minimizing the root Capsule Component and then add another Capsule that matched what I or…

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## [Vehicle mass being ignored](https://forums.unrealengine.com/t/vehicle-mass-being-ignored/460591)

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**Author:** [@RetroDev](https://forums.unrealengine.com/u/RetroDev)\
**Replies:** 1\
**Last updated:** [November 20, 2022, 10:19am UTC](https://forums.unrealengine.com/t/vehicle-mass-being-ignored/460591 "2022-11-20T10:19:43Z")

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Hello all. For some reason it seems the mass on wheeled vehicles are being ignored when pushing them with my player character. Does anybody have any solutions? I’ve maxed out the mass everywhere I can find, both in its …

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## [Physical Animation not working with Simulate Physics?](https://forums.unrealengine.com/t/physical-animation-not-working-with-simulate-physics/491691)

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**Author:** [@ChrisAsks](https://forums.unrealengine.com/u/ChrisAsks)\
**Replies:** 0\
**Last updated:** [December 7, 2021, 2:03pm UTC](https://forums.unrealengine.com/t/physical-animation-not-working-with-simulate-physics/491691 "2021-12-07T14:03:47Z")

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Hi everyone! Noob here again with another question. I have a character that has physical animation, so it has collision with objects. Now I want a ragdoll death with simulate physics. But somehow those two things don’…

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## [Mobile preview has different physics](https://forums.unrealengine.com/t/mobile-preview-has-different-physics/488170)

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**Author:** [@BatYaggy](https://forums.unrealengine.com/u/BatYaggy)\
**Replies:** 0\
**Last updated:** [August 30, 2021, 12:57am UTC](https://forums.unrealengine.com/t/mobile-preview-has-different-physics/488170 "2021-08-30T00:57:12Z")

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In my mobile preview, an impulse appears many times larger than on the computer. The physics object has no mass.

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## [Physic Based 3D Rope problems imported from Blender(Stretching Problem)](https://forums.unrealengine.com/t/physic-based-3d-rope-problems-imported-from-blender-stretching-problem/487506)

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**Author:** [@LETAYSHIBATON](https://forums.unrealengine.com/u/LETAYSHIBATON)\
**Replies:** 0\
**Last updated:** [August 16, 2021, 8:43am UTC](https://forums.unrealengine.com/t/physic-based-3d-rope-problems-imported-from-blender-stretching-problem/487506 "2021-08-16T08:43:02Z")

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Hello! I want to ask help with my Gang Beasts Recration in ue4! I’m trying to do a rope ring, which works, but not really how it should be! Rope Behaviour Video: link text On the video you can, that falls down to much…

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## [Physics Not Working with Animations](https://forums.unrealengine.com/t/physics-not-working-with-animations/486482)

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**Author:** [@f77533d](https://forums.unrealengine.com/u/f77533d)\
**Replies:** 0\
**Last updated:** [July 23, 2021, 2:10pm UTC](https://forums.unrealengine.com/t/physics-not-working-with-animations/486482 "2021-07-23T14:10:44Z")

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Hello, I am trying to rig a combine in unreal engine 4, specifically the augur. The augur needs to be able to swing outwards just like normal. I have rigged the combine in Blender for use in UE4 and have the vehicle blue…

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## [Physics body moving too much](https://forums.unrealengine.com/t/physics-body-moving-too-much/480241)

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**Author:** [@Flame](https://forums.unrealengine.com/u/Flame)\
**Replies:** 2\
**Last updated:** [March 13, 2021, 9:52pm UTC](https://forums.unrealengine.com/t/physics-body-moving-too-much/480241 "2021-03-13T21:52:56Z")

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hi guys i am setting up a system for making limbs ragdoll when shot at. The system works perfectly, but the physics simulations not so much. I reduced the size of the capusles so they don’t overlap at all, but im still …

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## [Is there a way to mitigate penetration of heavy objects into light objects?](https://forums.unrealengine.com/t/is-there-a-way-to-mitigate-penetration-of-heavy-objects-into-light-objects/479852)

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**Author:** [@Tuerer](https://forums.unrealengine.com/u/Tuerer)\
**Replies:** 8\
**Last updated:** [March 9, 2021, 2:24am UTC](https://forums.unrealengine.com/t/is-there-a-way-to-mitigate-penetration-of-heavy-objects-into-light-objects/479852 "2021-03-09T02:24:20Z")

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Two cubes simulate physics, and you can change their mass. If you put a heavy cube onto the light one, it penetrates it: here Is there a way to mitigate this behavior somehow? Thank you!

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## [Scale of Physics Object Changed but Get Mass not Correct](https://forums.unrealengine.com/t/scale-of-physics-object-changed-but-get-mass-not-correct/479040)

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**Author:** [@winglessraven](https://forums.unrealengine.com/u/winglessraven)\
**Replies:** 4\
**Last updated:** [February 19, 2021, 7:59pm UTC](https://forums.unrealengine.com/t/scale-of-physics-object-changed-but-get-mass-not-correct/479040 "2021-02-19T19:59:19Z")

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I’m pretty new to UE4 so please excuse anything obvious I’m missing. I have an object that changes scale via an input. I can see in the outliner that the MassInKg is being calculated accordingly, but when it enters a t…

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## [Physics Weight/Mass Problem](https://forums.unrealengine.com/t/physics-weight-mass-problem/472553)

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**Author:** [@Leviboy98](https://forums.unrealengine.com/u/Leviboy98)\
**Replies:** 6\
**Last updated:** [October 7, 2020, 7:14pm UTC](https://forums.unrealengine.com/t/physics-weight-mass-problem/472553 "2020-10-07T19:14:20Z")

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I’m using “Add World Offset” for character movement, which makes my character move with infinite force. Whenever I move/bump into physics simulating objects, regardless of their weight they just get pushed like they weig…

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## [Get mass or scale of debris of Destructible Mesh](https://forums.unrealengine.com/t/get-mass-or-scale-of-debris-of-destructible-mesh/470395)

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**Author:** [@Upeaval](https://forums.unrealengine.com/u/Upeaval)\
**Replies:** 0\
**Last updated:** [August 27, 2020, 9:21am UTC](https://forums.unrealengine.com/t/get-mass-or-scale-of-debris-of-destructible-mesh/470395 "2020-08-27T09:21:38Z")

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Hello, i have make a destructible mesh in my project, i my case i break trunk in different piece and i would like know the scale of piece ( chunk ) befor take him, for example, if this piece is to large, i can’t take him…

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## [Update mass of attached physics object during runtime](https://forums.unrealengine.com/t/update-mass-of-attached-physics-object-during-runtime/470125)

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**Author:** [@JobvW](https://forums.unrealengine.com/u/JobvW)\
**Replies:** 2\
**Last updated:** [August 21, 2020, 6:41pm UTC](https://forums.unrealengine.com/t/update-mass-of-attached-physics-object-during-runtime/470125 "2020-08-21T18:41:46Z")

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I am trying to update the total weight of a attached group of physics based meshes. For example a fuel tank that loses mass after use. So in each child actor I update the the mass using. "set mass " override in kg, wit…

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## [Physics objects in 4.22 feel weightless and unaffected by MassInKg when pushed](https://forums.unrealengine.com/t/physics-objects-in-4-22-feel-weightless-and-unaffected-by-massinkg-when-pushed/467273)

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**Author:** [@anonymous\_user\_e19b70ae1](https://forums.unrealengine.com/u/anonymous_user_e19b70ae1)\
**Replies:** 0\
**Last updated:** [June 26, 2020, 6:22am UTC](https://forums.unrealengine.com/t/physics-objects-in-4-22-feel-weightless-and-unaffected-by-massinkg-when-pushed/467273 "2020-06-26T06:22:37Z")

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So I was going through trying to make a Push Block physics object. In 4.19 - I have the object set to weigh 1500, on character colliding with the physics object he pushes it as I have seen in many tutorials. The weight …

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## [Questions about applying force based on actor mass](https://forums.unrealengine.com/t/questions-about-applying-force-based-on-actor-mass/463905)

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**Author:** [@Confidentbottle](https://forums.unrealengine.com/u/Confidentbottle)\
**Replies:** 6\
**Last updated:** [April 20, 2020, 10:25am UTC](https://forums.unrealengine.com/t/questions-about-applying-force-based-on-actor-mass/463905 "2020-04-20T10:25:07Z")

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I’ve been working on raycast-based wheel and tank track suspension for a vehicle building game, and while doing so a number of issues have come up. For simplicity’s sake, all forces are applied to a master actor which I’…

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## [Make AI character push the player](https://forums.unrealengine.com/t/make-ai-character-push-the-player/463306)

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**Author:** [@tongucci](https://forums.unrealengine.com/u/tongucci)\
**Replies:** 0\
**Last updated:** [April 4, 2020, 8:57am UTC](https://forums.unrealengine.com/t/make-ai-character-push-the-player/463306 "2020-04-04T08:57:35Z")

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When my player stands on the AI character’s AIMoveTo line, the AI character can’t go any further and sometimes after the player gets out of the way the it still stays on the same spot. I want the AI character not to sto…

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## [Black stretching lines and flickering](https://forums.unrealengine.com/t/black-stretching-lines-and-flickering/455558)

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**Author:** [@JDylan1396](https://forums.unrealengine.com/u/JDylan1396)\
**Replies:** 1\
**Last updated:** [September 19, 2019, 10:05am UTC](https://forums.unrealengine.com/t/black-stretching-lines-and-flickering/455558 "2019-09-19T10:05:58Z")

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Hello, I have been plagued with these black lines and flickering masses shooting all over the screen and I cannot figure out what is causing it. I thought it was something to do with my monitor and I tried adjusting tho…

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## [How can I pick/hold/carry object with effect of "heaviness"?](https://forums.unrealengine.com/t/how-can-i-pick-hold-carry-object-with-effect-of-heaviness/455241)

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**Author:** [@Goordul](https://forums.unrealengine.com/u/Goordul)\
**Replies:** 0\
**Last updated:** [September 12, 2019, 12:00pm UTC](https://forums.unrealengine.com/t/how-can-i-pick-hold-carry-object-with-effect-of-heaviness/455241 "2019-09-12T12:00:54Z")

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Hi everybody, finally I’m almost done with my UE4 project for College, but I’m trying to figure out: How can my FPS character pull/carry an object so it will be damping him like if he’s carrying something heavy? I have…

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## [How to view center of mass](https://forums.unrealengine.com/t/how-to-view-center-of-mass/449973)

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**Author:** [@Noodian](https://forums.unrealengine.com/u/Noodian)\
**Replies:** 1\
**Last updated:** [July 27, 2019, 12:55pm UTC](https://forums.unrealengine.com/t/how-to-view-center-of-mass/449973 "2019-07-27T12:55:11Z")

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On my search for an answer I have found this thread which ends with the statement that it is now possible to view the center of mass of an object. But where? What steps do I need to take to see the center of mass?

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## [What is "bone name" in Set Mass Override in Kg](https://forums.unrealengine.com/t/what-is-bone-name-in-set-mass-override-in-kg/445944)

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**Author:** [@anonymous\_user\_1badcb801](https://forums.unrealengine.com/u/anonymous_user_1badcb801)\
**Replies:** 0\
**Last updated:** [March 25, 2019, 12:23pm UTC](https://forums.unrealengine.com/t/what-is-bone-name-in-set-mass-override-in-kg/445944 "2019-03-25T12:23:18Z")

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Also, I tried to set my actor’s mass to negative value but it is still falling instead of floating. How can I make it float? Thank you.

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