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You are given a cylinder once …

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You are given a cylinder once the cylinder rolled up to a inclined plane and the same cylinder is rolled down the same inclined plane.

Find direction of friction in both the cases

    • Posted by Vivek Kumar 7 years, 1 month ago

    CBSE > Class 11 > Physics
    • 1 answers

    Naveen Sharma 7 years, 1 month ago

    Ans. The direction of the frictional force will be up the inclined plane in both the motions.

    The friction acts opposite to the relative motion of the point of contact on ground. In both the cases the force acting on the point of cylinder in contact with the plane is {tex}mgSin\theta{/tex}.

    As there is pure rolling the velocity and acceleration of the point of contact must be zero. So friction acts upwards along the inclined plane.

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