Home
Class 11
PHYSICS
The motion of a sphere moving on a rough...

The motion of a sphere moving on a rough horizontal surface changes from pure sliding (without rolling) to pure rolling (without slipping). In this process, the force of friction:

Text Solution

Verified by Experts

Yes. For rolling, torque is required. The weight and normal reaction cannot produce any torque as they are radial. So if friction is there it will exert a torque, because friction acts tangential to the moving body.
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    ICSE|Exercise MODULE 2 (LONG ANSWER QUESTIONS)|14 Videos

  • CIRCULAR MOTION

    ICSE|Exercise MODULE 2 (SHORT ANSWER QUESTIONS)|35 Videos

  • CIRCULAR MOTION

    ICSE|Exercise MODULE 1 (FROM BANKING OR RAILS AND ROADS)|13 Videos

  • COMPETITION CARE UNIT

    ICSE|Exercise OBJECTIVE QUESTIONS FROM PREVIOUS IAS EXAMINATIONS |50 Videos

Similar Questions

Explore conceptually related problems

When a body is rolling without slipping on a rough horizontal surface, the work done by friction is :

A solid homogeneous sphere is moving on a rough horizontal surface, partily rolling and partially sliding. During this kind of motion of the sphere.

A solid sphere rolling on a rough horizontal surface. Acceleration of contact point is zero. A solid sphere can roll on the smooth surface.

Work done by friction in case of pure rolling

A solid sphere of radius 2.45m is rotating with an angular speed of 10 rad//s . When this rotating sphere is placed on a rough horizontal surface then after sometime it starts pure rolling. Find the linear speed of the sphere after it starts pure rolling.

A hollow sphere rolls down a rough inclined plane whose angle of inclination is theta , with horizontal. For the hollow sphere to undergo pure rolling, without slipping, the condition is [ mu = coefficient of friction between the hollow sphere and inclined plane]

A solid sphere is thrown up a rough incline. The sphere rolls up without slipping and eventually comes down rolling without slipping. The direction of friction during upward and downward motion respectively is :-

When a body rolls without sliding up an inclined plane the frictional force is :

A sphere is rolled on a rough horizontal surface. It gradually slows down and stops. The force of friction tries to

A force (F=Mg) is applied on the top of a circular ring of mass M and radius R kept on a rough horizontal surface. If the ring rolls without slipping, then minimum coefficient of friction required is