What is the angular velocity of the earth? - Vidyadip

MCQ

What is the angular velocity of the earth?

✓
$\frac{2 \pi}{86400} rad / s$
B
$\frac{2 \pi}{3600} rad / s$
C
$\frac{2 \pi}{24} rad / s$
D
$\frac{2 \pi}{6400} rad / s$

✓

Answer

Correct option: A.

$\frac{2 \pi}{86400} rad / s$

(A)
For earth, T = $24 hr =24 \times 3600=86400 s$
$\omega=\frac{2 \pi}{T}=\frac{2 \pi}{24} rad / hr =\frac{2 \pi}{86400} rad / s$

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