I have another question about physics. I need to get the ball in a collision with a wall with "immovable". if the ball was a certain speed, it destroyed the wall. The ball starts with the actions of "apply impulse at angle" or "apply force at angle". When I tried to implement it in the game, the "wall" (in my game other object) is not destroyed or demolished or very rarely, in rare cases. Why do I not get it?