If her racket pushed on the ball for a distance of 0.13 m, what was the average acceleration of the ball during her serve?

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Physics

Jake

2 July, 08:45

If her racket pushed on the ball for a distance of 0.13 m, what was the average acceleration of the ball during her serve?

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Nina Wheeler · Answer 1

For the answer to the question above, the question is incomplete however, I've encountered this question before. the missing portion is A tennis serve is recorded at 130mi/h or 209km/h.

(209/3.6) = 58.056m/sec.

Acceleration = (v^2/2d) = (58.056^2/0.3) = 11,235m/sec^21.

Time = (v/a) = 58.056/11,235 = 5.167 x 10^-3 sec., or 5.17mS approx.