A block of mass M is pulled along a hori...

A block of mass M is pulled along a horizontal surface by applying a force at angle `theta` with the horizontal. The friction coefficient between the block and the surfasce is `mu`. If the block travels at a uniform velocity, find the work donen by this applied force during a displacement d of the blcok.

`frac(mu mgd)(cos theta_mu sin theta`

`frac(mu mgd cos theta)(cos theta+mu sin theta)`

`frac(mu mgd sin theta)(cos theta +mu sin theta)`

`frac(mu mgd cos theta)(cos theta-mu sin theta)`

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