Question

A soft tennis ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.10 m. (Assume that the positive direction is upward. Indicate the direction of velocities and accelerations with the sign of your answer.)

(a) Calculate its velocity (in m/s) just before it strikes the floor.

(b) Calculate its velocity (in m/s) just after it leaves the floor on its way back up.

(c) Calculate its acceleration (in m/s2) during contact with the floor if that contact lasts 3.50 ms (3.50 ✕ 10−3 s).

(d) How much (in m) did the ball compress during its collision with the floor, assuming the floor is absolutely rigid?

Answer 1