Sorry my fault, B is representing a point not a force. The theoritical proof is that in order for the sphere to rotate, the torque of F should be bigger than the torque of T. Its clear that both T and F are in the same distance from the center K which means we can now compare F and T as forces. The biggest value of T is always less than F since T=μ*N=0.25*N and N the reaction of the verticall wall is not big enough to cause balance.BvU said:
Good you mention it. I can now even distinguish a T in the picture.PhysicS FAN said:
YeahBvU said:
No, a 2 dimensional sphere cannot rotate on its own as it only has two dimensions and lacks the necessary components to rotate, such as an axis or angular momentum.
Yes, a 2 dimensional sphere can be rotated by an external force, such as a person physically moving it or a machine applying torque to it. However, the concept of rotation may be different in two dimensions compared to three dimensions.
A 2 dimensional sphere does not have an axis of rotation as it only exists in two dimensions. In three dimensions, the axis of rotation is the imaginary line around which an object rotates, but this concept does not apply in two dimensions.
No, a 2 dimensional sphere can only rotate in one direction as it only has two dimensions. In three dimensions, an object can rotate in multiple directions around different axes, but in two dimensions, this is not possible.
It is impossible for a 2 dimensional sphere to exist or rotate in a higher dimension. The concept of dimensions is a fundamental aspect of our universe and a 2 dimensional object cannot exist or behave in a higher dimension.
