A small block of mass m slides along a smooth frictional track as shown in figure. If it starts from

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5.Work, Energy, Power and Collision

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A small block of mass $m$ slides along a smooth frictional track as shown in the figure. If it starts from rest at $P$ , velocity of block at point $Q$ is

A

$\sqrt {2gR} $

B

$\sqrt {3gR} $

C

$2\sqrt {2gR} $

D

Zero

Solution

$5MgR – MgR = \frac{1}{2}M{V^2}$

Standard 11

Physics

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