Deformation Of the Fallen

I would probably name my band like this…
Anyway.
How to make the falling object deform when it falls on the surface( depending on its weight,
is it soft or hard, the height from which it was dropped) and deform the surface itself?
Like a rock, a glass and silk towel? How to add weight to the object? Does weight affect the speed of falling by default?
I think you all saw this lesson in blender on YouTube where some silk napkin being dropped on a cup
and it acts like actual silk(or something else, but itsnt rock solid hard, it acts like cloth).
I remember at first it was just a plain square but through material menu its properties were changed
to act like its a cloth or something.
Is there anything like that in unreal?
Also, if i import this napkin being already set to behave like silk from blender to Unreal, will the engine recognize its properties?

Thank you

Galileo Galilei aside, for cloth simulation like the silk napkin you describe, the keyword to look for is Apex Cloth. You use Nvidia’s tools to set it up, then import the resulting asset into UE.

Thank you.

Further help need, please advise if you know

Yep have a look at Nvidia Flex. It is a soft body physics engine and has integration with UE4 through their fork on github, you will need to be logged into github be able to see it. They have some good examples in there. Having advanced physics affect objects that interact together is a very difficult thing to try and do in real time.