A rectangular plate of mass M slides down, on a film of oil, at a unif – McqOptions

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1.	A rectangular plate of mass M slides down, on a film of oil, at a uniform velocity on an inclined surface sloping at 30o. Under this condition:
A.	The resistance due to viscosity of oil = M
B.	There is no resistance to motion as it slides down
C.	The viscous resistance to motion = M.sin.30
D.	The coefficient of friction = 0.5
Answer» D. The coefficient of friction = 0.5

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