Answer:
[tex]f=\frac{5}{3} =1.667\ rad.s^{-1}[/tex]
Explanation:
Given:
no. of revolutions observed, [tex]N=25[/tex]
times duration of observation, [tex]t=15\ s[/tex]
Frequency of rotation can be given by:
[tex]f=\frac{25}{15}[/tex]
[tex]f=\frac{5}{3} =1.667\ rev.s^{-1}[/tex]
We know that one revolution has 360° or 2π radian rotation.
