A 0140-Kg Baseball Is Dropped from Rest

question 53

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

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