Science, asked by taniyautumn, 9 months ago

A boy lifts a mass 5 kg to a height of 150 cm. what is the work done by boy?
=IS IT 750 joule

Answers

Answered by mk798699
8

Explanation:

work is equal to force into displacement 5 into 150= 750 joules

Answered by anandita2813
34

As you know,

Work = force × displacement

Here, boy has to lift a mass of 5 kg upwards with a force which is equal to its weight (mg )

F = mg = 5 Kg × 10 m/s^2 = 50 N

But, he displaces it to height of 150 cm = 1.5 m

Hence , W = 50 N × 1.5 m

= 75 Joule

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