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
- What is the velocity of the pendulum at the bottom?
- What is the tension in the cord at the bottom?
- What minimum velocity v0 should we give initially to the pendulum, in order to make it swing down to the borrom and then up to the horizontal position?