A solid sphere is under pure rolling on a rough fixed incline plane of angle θ. Choose the correct options if only contact forces and gravity are acting:

Options

• Option A

  Frictional force will be down the incline if sphere rolls up the incline and it will be up the incline if sphere rolls down the incline.

• Option B

  Frictional force will be down the incline whether spheres rolls up the incline or down the incline

• Option C

  Frictional force and acceleration of the body will increase with the increase in angle of incline plane

• Option D

  Velocity and acceleration of the point of contact of sphere with incline will be zero during the motion.