In a science museum, you may have seen a Foucault pendulum, which is used to demonstrate the rotation of the earth. In one museum's pendulum, the 120 kg bob swings from a 14.2 m long cable with an amplitude of 5.5°.
Part A
What is the period of this pendulum? Express your answer with the appropriate units.
Part B
What is the bob's maximum speed? Express your answer with the appropriate units.