A body is moving down a long inclined pl...

A body is moving down a long inclined plane of angle of inclination `theta`. The coefficient of friction between the body and the plane varies as `mu - 0.1 x`, where x is the distance moved down the plane. The body will have the maximum velocity when it has travelled a distance x given by :

`x = 10 tan theta`

`x = 5 tan theta`

`sqrt(2) cot theta`

`x = (sqrt(10))/(cottheta)`

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