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A boy pushes a book kept on a table byapplying a force of 4.5 N. Find the work done by the force if the book is displaced through 30 cm along the direction of push.

Text Solution

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Force applied on the book (F) = 4.5 N
Displacement (s) = 30 cm = (30/100) m
= 0.3 m
Work done, `W = FS`
` = 4.5 xx 0.3`
`1.35` J
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