If the radius of earth is 6400 km, is angular velocity is

Given that

$\text{r}=6400\text{m},\omega =?$

$\omega =\frac{2{\pi }^c}{\text{T}}$

T is time period

We have time period earth T = 24 hours.

$\text{T}=24\times 60\times 60\text{\hspace{0.17em}s}$

$\text{=}\frac{2\times 3.14}{24\times 60\times 60}$

$\omega =7.3\times {10}^{-5}{\text{rad s}}^{-1}$