If I want see the damage that an object, (for example a bowling ball) can cause on a sheet of plywood. Would the impact be the same if a trow the ball at the sheet of wood white standing perpendicularly as if we hold the sheet horizontally and throw the bowling ball at it from the top?Would the acceleration of the ball be different?A friend that tells me he used to be a physics teacher says that it is irrelevant if the wood is standing up or being laid horizontally, that the amount of damage to the sheet would be the same. Can you sort this out for us?