Q2. 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 110
kg bob swings from a 15.8-m-long cable with an amplitude of 5.0°. ($\omega = \sqrt{\frac{g}{L}}$)
where L is the length of pendulum and g = 9.8 m/s²)
a. What is the period of this pendulum?
b. What is the bob's maximum speed?
c. What is the pendulum's maximum kinetic energy?
d. When the bob is at its maximum displacement, how much higher is it than
when it is at its equilibrium position?