A topspin will result in less pressure on the bottom of the ball true or false

A topspin will result in less pressure on the bottom of the ball

true or false

Solutions

Expert Solution

Answer-

According to the given question-

We know that the spinning balls also generates lift force and this is called Magnus effect and the force due to spin is called Magnus force.
when a ball with top spin, then there is forward velocity in their upper surface compared to center of ball while there is backward velocity on lower surface compared to center of ball.
But all molecules of air have backward velocity compared to the center of ball. When air molecules strike the lower surface of the ball then this cause slow down of the ball because both air and the lower surface are in same direction compared to the center of ball.
When air molecule strike with top surface then it causes slow down of ball because top surface is moving opposite direction of air compared to the center of ball.
So the velocity of air on top surface is less than bottom surface and due to which there will be less pressure on lower surface because there is fast moving air molecule and this causes a lift force in downward direction on the ball.

So the statement

A topspin will result in less pressure on the bottom of the ball is true

gladiator answered 1 year ago

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