A pendulum of length l2m mass m1 kg is released from rest


A pendulum of length L=2m, mass m=1 kg, is released from rest, when the cord makes an angle of 45 degrees with the vertical

  1. What is the velocity of the pendulum at the bottom?
  2. What is the tension in the cord at the bottom?
  3. What minimum velocity vshould we give initially to the pendulum, in order to make it swing down to the borrom and then up to the horizontal position?

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Physics: A pendulum of length l2m mass m1 kg is released from rest
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