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prob_048 (2) - 48 REASONING The centripetal force is the...

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48. REASONING The centripetal force is the name given to the net force pointing toward the center of the circular path. At the lowest point the net force consists of the tension in the arm pointing upward toward the center and the weight pointing downward or away from the center. In either case the centripetal force is given by Equation 5.3 as F c = mv 2 / r . SOLUTION (a) The centripetal force is
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