A porter lifts a luggage of 2 kg from the ground
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porter lift a luggage of 15 kg from the ground and puts it on her head 2 m above the ground. Calculate the work done by her on the luggage? Take g = 10 ms^-2
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W = mgh = 15 x 10 x 2 = 300 J More
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Q A porter lifts a luggage of 15 kg from the ground and puts it on his head 1.5 m above the ground. Calculate the work done by him on the luggage.
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Mass of luggage = 15 kg
Height of luggage = h = 1.5 m
Work done = Force × Distance
Force = Weight of luggage
= m × g
.•. Work done = m × g × h
= 15 × 10 × 1.5
= 225
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