Sarita lives on 3rd floor of the building at the height of 15 m carries her school bag weighting 5.2 kg from the ground floor toi her house. Find the amount of work done by her and identify the force against which she has work done ( g = 10 m / s )
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given mass=5.2kg h=15m g=10m/s potential energy =mgh=5.2×-10×15=-780 joules
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