Calculate the work done by a person in lifting a load of $20 k g$ from the ground and floating it $1 m$ high on a table.

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Solution

M = 20 kg
h = 1 m
Work done against gravitational force,
W = mgh
= 20 x 9.8 x 1
= 196 J

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Calculate the work done by a person in lifting a load of 20kg from the ground and floating it 1m high on a table.

M = 20 kgh = 1 mWork done against gravitational force,W = mgh = 20 x 9.8 x 1 = 196 J

Calculate the work done by a person in lifting a load of $20 k g$ from the ground and floating it $1 m$ high on a table.

M = 20 kg
h = 1 m
Work done against gravitational force,
W = mgh
= 20 x 9.8 x 1
= 196 J