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A bob of mass m is pulled along a circul...

A bob of mass m is pulled along a circular are by means of a constant horizontal force P as shown. Work done in lifting the bob from A to B is

A

`mgl`

B

`(Pl)/(2)`

C

`Pl`

D

`(sqrt3Pl)/(2)`

Text Solution

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The correct Answer is:
B
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