Aperson having a mass of 75 kg climbs a flight of 10 stairs. each stair has a height of .3 meters. how much work is done by the person.

The work done by the man is 2207.25J.

Explanation:

Work is said to be done when a force is required to move a body having mass through a distance. The formula used to calculate work done by a person or an object is where, m is mass of an object is being moved, g is gravitational force acting on a body and h is height or distance of an object is moved. From given question, a 75kg person climbs 10 stairs each stair having 0.3m, m = 75kg, g = 9.81 and h = 10×0.3 = 3m. work done=75×9.81×3 = 2207.25J. Hence, total 'work done' by the person is 2207.25J.

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