1.

A block is kept on an inclined plane of inclination q of length l. The velocity of particle at the bottom of inclined is (the coefficient of friction is m)

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.               \[\sqrt{2gl(\cos \theta +\mu \sin \theta )}\]
Answer» C.             \[\sqrt{2gl(\sin \theta +\mu \cos \theta )}\]


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