When a baseball pitcher throws a curve ball, he makes the ball spin about an axis ________ the direction in which the ball's center of mass is moving.
A) perpendicular to
B) parallel to
C) 45° with respect to

Question

Quizplus · Accepted Answer

When a baseball pitcher throws a curve ball, the ball spins about an axis that is perpendicular to the direction in which the ball's center of mass is moving. This spin creates a pressure differential on either side of the ball due to the Magnus effect, causing it to curve.

When a Baseball Pitcher Throws a Curve Ball, He Makes