A man whose mass is 70 kg walks up to the third floor of a building. This is a vertical height of 12 meters above the street level, a) how many joules of work had he done? b) By how much has he increased his potential energy?, c) If he climbs the stairs in 20 seconds, what was his rate of working in hp? Solution FBD and Formula Required

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A: The mass of a person is, m=75 kg The height of a building is, h=74.1 m

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Q: A student is carrying a heavy backpack that weighs 252 N, and walks a distance of 365 m horizontally…

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Q: On a table rest 6 books of mass 0.27 kg and thickness 3.8 cm. How much work does it take to stack…

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Q: Suppose that 6J of work is needed to stretch a spring from its natural length of 28 cm to a length…

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Q: . A weight lifter lifts a 350-N set of weights from ground level to a position over his head, a…

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A: The formula for the gravitational force that is weight of the passenger is: The formula for the…