Is the velocity of a baseball pitcher's arm 100 mi/hr if his pitch is clocked going that fast?

Question

Provide an answer based on linear and angular kinematics.

Answer

The arm moves in an arc. The linear speed of the elbow is low, there is a second arc centered on the moving wrist, and only the finger tips move as fast as the ball.

Is the velocity of a baseball pitcher's arm 100 mi/hr if his pitch is clocked going that fast?

Answers (1)