It's required if there's another external force, such as wind, or gravity on a sloped surface. If there are no external forces, then the idealized friction force (no losses) is zero.andyrk said:Is frictional force necessary for rolling without slipping?
It meas the sphere will spin without moving linearly.andyrk said:If yes then does that mean that if we provide torque to a solid sphere on a frctionless surface will it not rotate?
andyrk said:when does static frction arise and when does kinetic friction arise when a body is rolling withoout slipping or with slipping. Any explanation would be of great help!
Rolling without slipping refers to the motion of an object where there is no relative sliding between the object and the surface it is rolling on. This means that the object rotates and translates at the same time, without any slipping or skidding. On the other hand, rolling with slipping occurs when there is relative motion between the object and the surface, resulting in some parts of the object slipping or skidding on the surface while it rolls.
The acceleration of an object rolling without slipping can be calculated using the equation a = (α - Rβ)/2, where a is the acceleration of the object, α is the angular acceleration, R is the radius of the object, and β is the linear acceleration of the center of mass of the object.
No, an object can only roll without slipping on surfaces with a coefficient of static friction that is greater than or equal to the ratio of the object's radius to its diameter. This is known as the rolling without slipping condition.
Rolling without slipping is essential in many real-life applications, such as in the design of wheels and tires for vehicles. It allows for efficient and smooth rolling motion, reduces wear and tear, and provides better traction and control.
Yes, an object can still roll without slipping on surfaces that are not perfectly smooth, as long as the surface has enough friction to prevent slipping. In fact, most surfaces in the real world are not perfectly smooth, and objects can still roll without slipping on them as long as the rolling without slipping condition is satisfied.