Yes it is friction. It wouldn't happen on a frictionless surface.akshay86 said:is it friction then how?
what is the diffrences in the both cases(direction of friction)?A.T. said:Yes it is friction. It wouldn't happen on a frictionless surface.
https://www.physicsforums.com/threads/investigation-of-a-rotating-cylinder.770027/#post-4847396akshay86 said:what is the diffrences in the both cases(direction of friction)?
Torque is a measure of the force that causes an object to rotate about an axis. In the case of rotating spheres, torque is the force that causes the sphere to spin or rotate.
The amount of torque exerted on a rotating sphere depends on several factors, including the mass of the sphere, the distance between the axis of rotation and the point where the force is applied, and the magnitude of the force itself.
The shape of a sphere can affect the amount of torque it experiences in several ways. For example, a sphere with a larger radius will experience a greater torque than a sphere with a smaller radius when the same force is applied. Additionally, a sphere with a non-uniform shape may experience varying amounts of torque depending on the distribution of its mass.
Forces act on a rotating sphere in a variety of ways. A force applied to the center of mass of a sphere will cause it to move in a straight line, while a force applied off-center will cause it to rotate. Additionally, multiple forces acting on a sphere can result in complex rotational motion.
The concept of torque and rotating spheres has many real-life applications, including in the design of engines, turbines, and other rotating machinery. It is also important in sports such as baseball and golf, where torque is used to generate power and spin in the trajectory of the ball.