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A softball having a mass of 0.25 kg is pitched at 20 m/s. By the time...

A softball having a mass of 0.25 kg is pitched at 20 m/s. By the time it reaches the plate, it may have slowed by 20%. Neglecting gravity, estimate the average force of air resistance during a pitch, if the distance between the plate and the pitcher is about 10 m

. A. 1.1 N

B. 5.1 N

C. 2 N

D. 3.2 N

A golf ball of mass 0.04 kg is hit off the tee at a speed of 50 m/s. The golf club was in contact with the ball for 2 ms, find the average force exerted on the ball by the golf club.

A.

100 N
B.

2 N
C.

1000 N
D.

1 N
Engineering   Mechanical-Engineering   
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