Given:
The child completes one full cycle in,
[tex]t=5\text{ s}[/tex]To find:
Frequency and the period
Explanation:
The time for one complete oscillation is called the period of an oscillation.
So, the time period is,
[tex]T=5\text{ s}[/tex]The frequency is,
[tex]\begin{gathered} f=\frac{1}{T} \\ =\frac{1}{5} \\ =0.2\text{ Hz} \end{gathered}[/tex]Hence, the frequency is 0.2 Hz and the period is 5 s.