A 0140-Kg Baseball Is Dropped from Rest

Multiple Choice

A 0.140-kg baseball is dropped from rest. It has a speed of 1.20 m/s just before it hits the ground, and it rebounds with an upward speed of 1.00 m/s. The ball is in contact with the ground for
0) 0140 s. What is the average force exerted by the ground on the ball during the time of contact?

A) 22.0 N upwards
B) 2.00 N upwards
C) 0.00 N
D) 2.00 N downwards
E) 22.0 N downwards