1.

A porter lifts a luggage of 15 kg from the ground and puts it on his head 1.5m above the ground. Calculate the work done by him on the luggage.​

Answer»

Answer:

225J

Explanation:

M = 15kg

g = 10m/s^2

h = 1.5m

As work done by an object is equal to the POTENTIAL ENERGY STORED in an object.

Therefore,

W = MGH

= 15×10×1.5

= 225J.



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