What happens to the momentum of the cue ball if it rebounds with a velocity of 1.00 m/s?

When a cue ball rebounds with a velocity of 1.00 m/s, the momentum indeed reverses direction. Momentum is defined as the product of an object's mass and its velocity. If the cue ball initially travels in one direction and then bounces back in the opposite direction, its momentum changes not just in magnitude but also in direction.

If we consider the initial momentum of the cue ball to be in a positive direction, when it rebounds with a velocity of 1.00 m/s in the opposite direction, its momentum will become negative. This reversal in momentum signifies not just a change in its numerical value but also a change in its directional vector, which is crucial in understanding the concept of momentum in physics.

This scenario highlights the principle that momentum is a vector quantity, which means it has both magnitude and direction. Therefore, the statement that the momentum reverses direction accurately describes what happens to the cue ball's momentum during its rebound.