#### Question

Explain why A spinning cricket ball in air does not follow a parabolic trajectory

#### Solution 1

A spinning cricket ball has two simultaneous motions – rotatory and linear. These two types of motion oppose the effect of each other. This decreases the velocity of air flowing below the ball. Hence, the pressure on the upper side of the ball becomes lesser than that on the lower side. An upward force acts upon the ball. Therefore, the ball takes a curved path. It does not follow a parabolic path

#### Solution 2

A spinning cricket ball would have followed a parabolic trajectory has there been no air. But because of air the Magnus effect takes place. Due to the Magnus effect the spinning cricket ball deviates from its parabolic trajectory.

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Solution Explain Why a Spinning Cricket Ball in Air Does Not Follow a Parabolic Trajectory Concept: Bernoulli’S Principle.