Question

A simple pendulum takes 23.5 seconds to complete 20 cycles. What is the period (T) and frequency of the pendulum?

Answer 1

Period is the time taken by the pendulum to complete one cycle. Therefore: Period $T=23.5sec/20cycles$

$T=1.175sec$

Frequency of the pendulum $f= 1/T$

$f=1/1.175sec$

$f=0.851cycles/sec$