Ball A is dropped from the top of a building. One second later, ball B is dropped from the same building. Neglect air resistance. As time progresses, the difference in their speeds
A) increases.
B) decreases.
C) remains constant.
D) cannot be determined from the information given.

Question

Quizplus · Accepted Answer

The acceleration due to gravity acts equally on both balls, so the difference in their speeds remains constant. Each ball accelerates at the same rate (9.8 m/s^2), so the speed difference established in the first second is maintained.

Ball a Is Dropped from the Top of a Building