A thin rod of length 0.75 m and mass 0.42 kg is suspended freely from one end.

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A thin rod of length 0.75 m and mass 0.42 kg is suspended freely from one end. It is pulled to one side and then allowed to swing like a pendulum, passing through its lowest position with angular speed 4.0 rad/s. Neglecting friction and air resistance, find

(a) The rod's kinetic energy at its lowest position and

(b) How far above that position the center of mass rises.

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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