Question

The linear velocity of a point on the equator is nearly (radius of the earth is 6400 km)

• A. 800 km/hr
• B. 1600 km/hr
• C. 3200 km/hr
• D. $\sqrt{2}$m/s

Answer 1

Answer: (B)

1600 km/hr

Answer 2

$v = rw = 6400km \times \frac{2\pi}{24}\frac{rad}{hr} = 1675km/hr$

$= 1600km/hr$