A pendulum bob with a mass of 0.48 kg is attached to a 1.5 m long string as shown. The pendulum bob swings from rest at point A, where the angle = 32°, to point B at the bottom of its arc 8 11-1 1.5 m A B a) Determine the change in the gravitational potential energy of the pendulum bob-earth system. b) What is the kinetic energy at point B? c) Determine the speed of the pendulum bob at point B.

A pendulum bob with a mass of 0.48 kg is attached to a 1.5 m long string as shown. The pendulum bob swings from rest at point A, where the angle = 32°, to point B at the bottom of its arc 8 11-1 1.5 m A B a) Determine the change in the gravitational potential energy of the pendulum bob-earth system. b) What is the kinetic energy at point B? c) Determine the speed of the pendulum bob at point B.