a porter lifts a luggage of 15kg 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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work done is zero because porter does't change his position.
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The formula for work, as we know, is Work = Mass x Gravity x Height.
Here, the mass of the luggage is 15 kg, the constant of gravity is 10 m/s^2, and the height is 1.5 m.
Therefore, the total amount of work done can be calculated by multiplying these three values, that is, Work= 15 x 10 x 1.5 = 225 Joules.
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