Question

A solid cylinder of mass M and radius R rolls without slipping down an inclined plane making an angle $\theta$ with the horizontal. Then the force of friction acting on the cylinder is

• A.
• B. $\frac { 1 } { 3 } \mathrm { Mg } \sin \theta$
• C. $\frac { 2 } { 5 } \mathrm { Mg } \sin \theta$
• D.

Answer 1

Answer: (B)

$\frac { 1 } { 3 } \mathrm { Mg } \sin \theta$

Answer 2

Force of friction, f = Mg sin $\theta$- Ma