A baseball pitcher brings his arm forward during a pitch, rotating the forearm a

Question

A baseball pitcher brings his arm forward during a pitch, rotating the forearm about the elbow. If the velocity of the ball in the pitcher's hand is 28.5 m/s and the ball is 0.290 m from the elbow joint, what is the angular velocity (in rad/s) of the forearm? A baseball pitcher brings his arm forward during a pitch, rotating the forearm about the elbow. If the velocity of the ball in the pitcher's hand is 28.5 m/s and the ball is 0.290 m from the elbow joint, what is the angular velocity (in rad/s) of the forearm?

Explanation / Answer

v = 28.5 m/s

distance from elbow joint r = 0.290 m

v = r w

angular velocity w = v / r

= 28.5 / 0.290

angular velocity of the forearm = 98.27 rad/s

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