a man lifts a luggage of 20 kg and puts it on his head 1.7 m above the ground.what is the work done by the man on the luggage if g=10 m/s^2

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Solution

The porter does work against the force of gravity to lift the luggage. This work done is stored in the luggage as potential energy.

By work energy theorem,

Work done = PE = mgh

=> Work done = 20 ×10 ×1.7 = 340J

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a man lifts a luggage of 20 kg and puts it on his head 1.7 m above the ground.what is the work done by the man on the luggage if g=10 m/s^2

The porter does work against the force of gravity to lift the luggage. This work done is stored in the luggage as potential energy. By work energy theorem, Work done = PE = mgh => Work done = 20 ×10 ×1.7 = 340J

The porter does work against the force of gravity to lift the luggage. This work done is stored in the luggage as potential energy.

By work energy theorem,

Work done = PE = mgh

=> Work done = 20 ×10 ×1.7 = 340J