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A body is pushed through 5 m across a su...

A body is pushed through 5 m across a surface offering 75 N resistance How much work is done by the (1) applied force (ii) resisting force ?

Text Solution

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(i) `F=75N, d=5m`
Work done by applied force `=W=Fd cos 0^(@)`
`=75xx5xx1=375J`
(ii) Work done by resisting force `=F d cos 180^(@)`
`=75xx5xx(-1)=-375J`
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