February 23, 2017

Homework Help: physics

Posted by Anonymous on Wednesday, May 2, 2012 at 3:39pm.

A frictionless pendulum is made with a bob of mass 19.7 kg. The bob is held at height = 0.934 meter above the bottom of its trajectory, and then pushed forward with an initial speed of 2.93 m/s. What amount of mechanical energy does the bob have when it reaches the bottom?

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