A sphere has to purely roll upwards. At an instant when the velocity of sphere is `v,` frictional force acting on it is

A disc and a solid sphere of same mass and radius roll down an inclined plane. The ratio of thhe friction force acting on the disc and sphere is

A disc and a solid sphere of same mass and radius roll down an inclined plane. The ratio of thhe friction force acting on the disc and sphere is

A sphere is performing pure rolling on a rough horizontal surface with constant angular velocity. Frictional force acting on the sphere is zero. Velocity of contact point is zero.

A sphere of mass m is rolling without sliding along positive x-axis on a rough horizontal surface of coefficient of friction mu . It elastically collides with a wall and then returns. The correct statement of frictional force (f) acting on the sphere is

A sphere of mass m is rolling without sliding along positive x-axis on a rough horizontal surface of coefficient of friction mu . It elastically collides with a wall and then returns. The correct statement of frictional force (f) acting on the sphere is

A solid sphere of mass M and radius R is pulled by a force F as shown in figure . If the sphere does not slip over the surface , then frictional force acting on the sphere is

A solid sphere of mass M and radius R is pulled by a force F as shown in figure . If the sphere does not slip over the surface , then frictional force acting on the sphere is

A solid sphere of mass m and radius R is on a rough surface as shown in figure. Two forces having magnitude 2F and F are applied as shown. If the sphere perfors pure rolling along right direction, then frictional force acting on the sphere is

A solid sphere of mass m and radius R is on a rough surface as shown in figure two forces have you magnitude to F and F are applied as shown if there is performed pure rolling along right right then frictional force acting on the sphere is