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During her serve, Serena Williams tosses the tennis ball directly upwards, releasing the ball at eye-level...

During her serve, Serena Williams tosses the tennis ball directly upwards, releasing the ball at eye-level (1.75 m above the ground). She strikes the ball with her racquet when it’s 2.75 m above the ground and 1 s after the ball leaves her hand. What is the maximum height of the ball above the ground?

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