How much work did he do in overcoming gravity

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A person having a mass of 59.1 kg stands before a flight of 30 stairs each of which is 25 cm high. He runs 20 stairs, turns around, walks down 10, changes his mind, and goes up the remaining 20. How much work did he do in overcoming gravity?

Reference no: EM13502339

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How much work did he do in overcoming gravity : A person having a mass of 59.1 kg stands before a flight of 30 stairs each of which is 25 cm high. How much work did he do in overcoming gravity
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