Problem 15-108 from Dynamics 14th edition by Hibbeler
when the 2 kg bob is given a horizontal speed of 1.5 m/s, it begins to rotate around the horizontal circular path A. If the force F on the cord is increased, the bob rises and then rotates about the horizontal circular path B. Determine the speed of the bob around path B. Also, find the work done by force F.
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