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persia7
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suppose a rigid ball have pure rolling with constant velocity on rigid level without friction , is it possible ?
Pure rolling without friction is a form of motion in which an object, such as a wheel, rotates without any slipping or sliding. This means that the point of contact between the object and the surface it is moving on has no relative motion.
In regular rolling, there is a small amount of slipping or sliding between the object and the surface it is moving on, which creates friction. In pure rolling without friction, there is no slipping or sliding, so there is no friction.
In order for pure rolling without friction to occur, the object must have a perfectly round shape and the surface it is moving on must also be perfectly smooth. Additionally, there can be no external forces acting on the object, such as gravity or friction.
Pure rolling without friction is commonly seen in situations where wheels or balls are used, such as in sports equipment, vehicles, and even in rolling suitcases. It is also important in understanding the dynamics of circular motion in physics.
No, it is not possible to achieve pure rolling without friction in real-life because there will always be some amount of friction present. However, in situations where the amount of friction is very small, we can approximate pure rolling without friction.