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Solution: We will approach the problem in two ways. First, we will use the work-energy theorem to obtain the answer in a straightforward manner. We will then compare our answer to that obtained using the (considerably more complicated) method of computing the integral of the force times displacement along the path.
Method 1
System: The object as a point particle undergoing pure rotation, acted upon by external forces from the string (tension), the earth (gravity) and the table (normal force).
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