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A body is projected up along an inclined...

A body is projected up along an inclined plane from the bottom with speed is `2v`.If it reaches the bottom of the plane with a velocity `v`,if `theta` is the angle of inclination with the horizontal and `mu` be the coefficient of friction. find `mu`

A

`(5)/(3)tan theta`

B

`(3)/(5)tan theta`

C

`(1)/(5)tan theta`

D

`(2)/(5)tan theta`

Text Solution

Verified by Experts

The correct Answer is:
B
`V_(1)=sqrt(2gl(sin theta+mu_(k) cos theta))`
`V_(2)=sqrt(2gl(sin theta-mu_(k)costheta))`
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