A block is kept on an inclined plane of inclination $\theta$ of length l. The velocity of particle at the bottom of inclined is (the coefficient of friction is $\mu$)
A$\sqrt {2gl(\mu \cos \theta - \sin \theta )} $
B$\sqrt {2gl(\sin \theta - \mu \cos \theta )} $
C$\sqrt {2gl(\sin \theta + \mu \cos \theta )} $
D$\sqrt {2gl(\cos \theta + \mu \sin \theta )} $
Medium
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B$\sqrt {2gl(\sin \theta - \mu \cos \theta )} $
b (b) Acceleration $(a) $ $ = g(\sin \theta - \mu \;\cos \theta )$ and $s = l$
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