An 85 cm long pendulum with a 0.80 kg bob is released from rest at an initial angle of θ0 with the vertical. At the bottom of the swing, the speed of the bob is 2.8 m/s.

Question

What angle does the pendulum make with the vertical when the speed of the bob is 1.4 m/s?

Answer 1

dude, you do it

Answer 2

Dmw