At serve, a tennis player aims to hit the ball horizontally. What minimum speed is required for the ball to clear the 0.90-m-high net about 15.0m from the server if the ball is €œlaunched€ from a height of 2.50 m? Where will the ball land if it just clears the net (and will it be €œgood€ in the sense that it lands within 7.0m of the net)? How long will it be in the air? See Fig 3-45.

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2.50 m 7.0 m 15.0 m