A baseball pitcher loosens up his pitching arm. He tosses a 0.20-kg ball using only the rotation of his forearm, 0.32 m in length, to accelerate the ball. What is the moment of inertia of the ball alone as it moves in a circular arc with a radius of 0.32 m?
a. 1.5 × 10^-2 kg•m2
c. 4.0 × 10^-2 kg•m2
b. 2.0 × 10^-2 kg•m2
d. 7.6 × 10^-2 kg•m2
B
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