Responses
It has a change in momentum equal to that of the rock, in the opposite direction.
It has a change in momentum equal to that of the rock, in the opposite direction.
It does not change.
It does not change.
It has a change in momentum greater than that of the rock, in the opposite direction.
It has a change in momentum greater than that of the rock, in the opposite direction.
It has a much smaller change in momentum than that of the rock, in the opposite direction.
1 answer
The correct response is:
It has a change in momentum equal to that of the rock, in the opposite direction.
This is due to the law of conservation of momentum: when two objects collide, the total momentum before the collision is equal to the total momentum after the collision. In this case, when the rock bounces off the car, the rock experiences a change in momentum, and by Newton's third law, the car experiences an equal and opposite change in momentum.
