Question

Pendulum makes 12 complete swings in 8 seconds, what are its frequency and period on earth

Answer 1

Hi there!

We can begin by finding the period of the pendulum.

`T = \text{ # of complete swings / seconds} = 12 / 8 = \boxed{\text{1.5 sec}}`

The frequency is simply the reciprocal of the period, so:

`f = (1)/(T) = (1)/(1.5) = (2)/(3)Hz \text{ or } \boxed{0.67 Hz}`