What is the frequency of oscillation of a simple pendulum mounted in a cabin that is freely falling under gravity?

What is the frequency of oscillation of a simple pendulum mounted in a

1.	What is the frequency of oscillation of a simple pendulum mounted in a cabin that is freely falling under gravity?
Answer» Solution :Gravity DISAPPEARS for a MAN under free fall. Hence, the FREQUENCY of the simple PENDULUM under this situation is zero