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3 years ago

10

What is the linear speed of a point on the equator, due to the earth's rotation?

1 answer:

kvv77 [185]3 years ago

8 0

The equatorial radius of the earth is
r = 6378 km = 6378 x 10³ m

The earth makes 1 revolution in 24 hours.
The angular velocity is
ω = (2π rad)/(24*3600 s) = 7.2722 x 10⁻⁵ rad/s

The tangential velocity (linear velocity) at a point on the equator is
v = rω
= (6378 x 10³ m)*(7.2722 x 10⁻⁵ rad/s)
= 463.8 m/s

Answer: 463.8 m/s

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