According to Newton's second law, which of the following cannot be true?
Halving the mass of a bowling ball halves the acceleration it receives from a given amount of force.
When struck with the same amount of force, a hollow beach ball has a larger acceleration than a
solid boulder of the same size.
You lift upward on a rock, and it accelerates upward.
You push to the right on a desk while friction pushes to the left, so that the desk doesn't accelerate.
A greater force is required to take a train from 0 to 60 mph than is required to take a bicycle from 0
to 60 mph in the same amount of time.
