When a ball falls downward, it may have a net force
A)equal to its weight.
B)of zero.
C)equal to its weight minus air drag.
D)any of the above
E)none of the above

Question

Quizplus · Accepted Answer

The net force on a falling ball can vary depending on the situation. It can be equal to its weight if air resistance is negligible (A), effectively zero if it reaches terminal velocity where air resistance equals the gravitational force (B), or equal to its weight minus air drag if air resistance is not negligible but hasn't reached terminal velocity (C).

When a Ball Falls Downward, It May Have a Net