A boat with a horizontal tow rope pulls a water skier. She skis off to the side, so the rope makes an angle of?
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A boat with a horizontal tow rope pulls a water skier. She skis off to the side, so the rope makes an angle of 15.0 degrees with the forward direction of motion. If the tension in the rope is 170 N}, how much work does the rope do on the skier during a forward displacement of 300 m}?
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Answer:
The rope does no work whatsoever. It merely is in tension, transmitting the kinetic energy required to move the skier across the water. It is the boat' engine which is doing the work.
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