Physics-
General
Easy
Question
A solid cylinder of mass m and radius r is rolling on a rough inclined plane of inclination 
. The coefficient of friction between the cylinder and incline is 
. Then
- frictional force is always mmg cos .
- friction is a dissipative force
- by decreasing , frictional force decreases
- friction opposes translation and supports rotation.
.
, frictional force decreases
The correct answer is: friction opposes translation and supports rotation.
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