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Angular Momentum

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A long thin rod of mass M = 2.00 kg and length L = 75.0 cm is free to rotate about its
center as shown. Two identical masses (each of mass m = .421 kg) slide
without friction along the rod. The two masses begin at the rod's point of rotation when
the rod is rotating at 10.0 rad/s.


(a) When they have moved halfway to the end of the rod, how fast (rad/s) is the rod

(b) When the masses are halfway to the end of the rod, what is the ratio of the final
kinetic energy to the initial kinetic energy (Kf =Ki)?

(c) When they reach the end, how fast is the rod rotating (rad/s)?

  • Angular Momentum -

    Disregard. I found a post with it

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