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A horizontal constant force F pulls a bl...

A horizontal constant force F pulls a block of mass m placed on a horizontal surface. If the coefficient of kinetic friction between the block and ground is `mu`, find the power delivered by the external agent after a time t measured from the beginning of action of the force.

A

`ma^(2)t`

B

`m mu gat`

C

`mu m (a+mug)g t`

D

`m(a+mu g)at`

Text Solution

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The correct Answer is:
D
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