A boy lifts a 5 kg mass from the ground up to a height of 2 m. How much work does the boy do on
the mass? [Take g = 10 m/s^2].
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A boy lifts a 5 kg mass from the ground up to a height of 2 m. How much work does the boy do on
the mass? [Take g = 10 m/s^2].
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