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Physics, 06.10.2019 04:30 vintageandre

Afew years ago, serena williams dived to hit a tennis ball right after it bounced off the ground. the ball bounced on the ground 10.3 m from the net, and after serena hit the ball it flew over the 0.950 m high net and bounced in her opponent's court about 0.970 s after she hit it. if there had been no gravity, the ball would have been 1.36 m higher than the net when it crossed over. how fast was the ball moving when it left serena\'s racket? ignore any effects from ball spin and air resistance.

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