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Q. A 75kg sprinter acclerates form rest to a spped of 11 m/s in 5 sec. Calculate the mechanical work done by the sprinter during this time.

Q. How much would a 80.0 kg person weight on Mars, where the acceleration of gravity is 3.93 m/s^2, and on Earths Moon, where the acceleration of gravity is 1.63 m/s^2?

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