a) Since the force F rotates with a constant angular velocity and is localized to a plane without any loss of generalization we can express it in vector form as . This means,

b)The particle will stop when |v| = 0, ie. at times when

The distance traveled during any two consecutive intervals will be the same since the way |v|

changes is identical. This if given by,

## Sunday, November 25, 2007

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