Answer:1.2 s
Step-by-step explanation:
Given
Person Jumps on a pogostick [tex]50\ times\ per\ minute[/tex]
i.e. [tex]50\ times\ in\ 1\ minute[/tex]
[tex]50\ times\ in\ 60\ sec[/tex]
Therefore for 1 jump it is
[tex]\Rightarrow \dfrac{60}{50}\ sec[/tex]
[tex]\Rightarrow 1.2\ s[/tex]
Therefore it's period is [tex]1.2\ s[/tex]