Question

A solid sphere of mass ‘m’ and radius R rolls on a horizontal rough surface without slipping due to a horizontal force ‘F’ acting at the top of the sphere. Then the frictional force acting between the body and the surface is

• A. $F$
• B. $Zero$
• C. $\frac{7}{3}F$
• D. $\frac{3}{7}F$

Answer 1

The correct option is D

$\frac{3}{7}F$

$(F+f)=ma$ and $(F=-f)=\frac{I_a}{R^2}$