ch06-p055 - 55. For the puck to remain at rest the...

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centripetal force that keeps the puck in its circular orbit, so T = mv 2 / r . Thus Mg = mv 2 / r . We solve for the speed: 2 (2.50kg)(9.80m/s )(0.200 m) 1.81 m/s. 1.50kg Mgr v m == = 55. For the puck to remain at rest the magnitude of the tension force
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