Atennis ball is hit into the air with a racket. when is the balls kinetic energy the greatest?

Kinetic energy is maximum when the player hits the ball.

Explanation:

Kinetic energy , where m is the mass and v is the velocity.

So kinetic energy is proportional to square of velocity.

Velocity is maximum when the player hits the ball.

So kinetic energy is maximum when the player hits the ball.

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