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A tennis ball of mass 60.9 g is Struck from rest with a racket. The contact...

A tennis ball of mass 60.9 g is Struck from rest with a racket. The contact time of the ball on the racket is 9.2 ms and the ball leaves the racket with a velocity of 35 m / s. Calculate the average force exerted by a racket on a ball. Give an answer to one decimal place. Remember add unit N after the numerical value.

Science   Advanced-Physics   
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Answer #1

Her if there is some some initial velocity then in that case the change in velocity is the vector sum of both initial and final ...But in given problem, Initial velocity is zero that's why here we are not considered vector addition or substraction .

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