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Chapter 04, Problem 036 During a tennis match, a player serves the ball at 25.5 m/s, with...

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Physics

Chapter 04, Problem 036

During a tennis match, a player serves the ball at 25.5 m/s,with the center of the ball leaving the racquet horizontally 2.55 mabove the court surface. The net is 12.0 m away and 0.900 m high.When the ball reaches the net, (a) what is thedistance between the center of the ball and the top of the net?(b) Suppose that, instead, the ball is served asbefore but now it leaves the racquet at 5.00° below the horizontal.When the ball reaches the net, what now is the distance between thecenter of the ball and the top of the net? Enter a positive numberif the ball clears the net. If the ball does not clear the net,your answer should be a negative number. Use g=9.81m/s2.

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3.6 Ratings (610 Votes)
Part A When ball is served horizontally thenInitial horizontal speed V0x V0cos 255cos 0 deg 255 msInitial vertical speed V0y V0sin 255sin 0 deg 0 msNow range in projectile motion is given byR V0xt Since there is no acceleration in horizontaldirection So horizontal velocity remains constantGiven that net is 120 away from    See Answer
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