A body of mass m starts from rest down a...

A body of mass `m` starts from rest down a plane of length `l` at an angle `theta` with the horizontal. (a) find the body's speed at the bottom (b) How far will it slide horizontally on a similar surface after reaching the bottom of the incline. The coefficient of friction between the body and the plane is `mu`.

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The correct Answer is:

(a) `2gl(sin theta - mu cos theta)` (b) `(l)/(mu) (sin theta - mu cos theta)`

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