Roger Federer tosses the ball 2 0 m straight up from his hand for his...
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Physics
Roger Federer tosses the ball 2 0 m straight up from his hand for his first serve Solve using conservation of energy principles a Calculate the speed of the ball as it leaves Federer s hand 3 b On his second serve he tosses the ball at 1 2 the speed Is the height reached halved Explain using calculations 3
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