Can't get rid of Physics Thruster from affecting level

I drag and dropped a physics thruster into my level.
The impulse force from the thruster was correctly affecting my physics assets.
I deleted the physics thruster from my outliner because I did not want to save the change, but the impulse won’t stop affecting the level.

How can I stop the impulse from happening? I don’t know what to delete.

Did you rebuilt the project?

Hi, yes I rebuilt the project but the impulse force still happens every time I play/simulate the level.

Found my answer!
My physics assets were set to “Start Awake”, which was causing the immediate reaction. Just checked it off and all was well.