Question

Two friends are holding up opposite ends of a horizontal 5 meter long 10 kg pole.  One...

Two friends are holding up opposite ends of a horizontal 5 meter long 10 kg pole.  One of them suddenly lets go.

  1. What is the net torque on the pole about the hand of the person still holding the pole?

b)  What is the magnitude of angular acceleration of the pole immediately after one of them lets go?   The moment of inertia of a pole about one end is 1/3 MR2

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