1.

A olid cylinder of mass m and radius r is rolling on a rough inclined plane of inclination θ. The coefficient of friction between the cylinder and incline is μ. Then_____.

A. frictional force is always μmg cos θ
B. friction is a dissipative force
C. by decreasing θ, frictional force decreases
D. friction opposes translation and supports rotation.
Answer» E.


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