Question

A boy of weight 300n climbs to the top of a hill of height 20 m. The work done by the boy against the force of gravity is​

Answer 1

Given,

W = 300N

S = 20 m

Work = force x Displacement.

= 300 x 20

= 6000 Joules.

P.S

Many people get fonfused as to why i took the goven weight as the force. Its because weight is also a force exerted by objects on earth.

ALL THE BEST

Answer 2

Formula for work:

`w=Fd`

work(measured in joules) = force(measured in newtons) * distance(measured in meters)

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Given:

`F=300N`

`d=20m`

`w=?`

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Finding work:

`w=Fd`

`w=300*20`

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Answer:

`\fbox{w = 6000 Joules}`