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Kindly show how you got the answer A 68.1-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s.

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Kindly show how you got the answer

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A 68.1-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then drops through a height of 1.57 m, and ends with a speed of 8.51 m/s. How much nonconservative work (in kj) was done on the boy? 2 Additional Materials Reading

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