Rotating & Moving Spheres: What Causes Torque & Force?

AI Thread Summary
A central force acting on a sphere causes both rotation and linear movement, with torque arising from friction in this scenario. On a frictionless surface, the sphere would not exhibit these movements, highlighting the importance of friction. The direction of friction differs between the cases of torque and net force, affecting the sphere's motion. Understanding these dynamics is crucial for analyzing rotational and translational motion. Friction plays a vital role in enabling these movements.
akshay86
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if a central force acts on a sphere it will rotate and move and also a angular momentum is given to that body it will also move in the same manner.What provide torque in first case and net force in second case.is it friction then how?
 
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akshay86 said:
is it friction then how?
Yes it is friction. It wouldn't happen on a frictionless surface.
 
A.T. said:
Yes it is friction. It wouldn't happen on a frictionless surface.
what is the diffrences in the both cases(direction of friction)?
 

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