A 0140-Kg Baseball Is Dropped from Rest

question 67

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

---

Definitions:

Uric Acid

A waste product formed from the breakdown of purines, eliminated through urine.

Nocturnal Enuresis

Involuntary urination during sleep, commonly referred to as bedwetting.

Tofranil

A brand name for imipramine, a tricyclic antidepressant used to treat depression and certain anxiety disorders.

Edema

An accumulation of fluid in the tissues, causing swelling, often as a result of inflammation or injury.