What is the linear speed of a point:

a) on the equator,
b) on the Arctic Circle (latitude 66.5 degrees N),
c) at a latitude of 45.0 degrees N, due to the Earth's rotation?

a relevant equation is v=rw, but I'm not sure how to apply it to the equation

5 answers

w = 2 pi/24 radians.hr = 2 pi/(24*3600) radians/second

R = earth radius in meters (3.4*10^6 m)

r = distance from spin axis of earth = R * cos (latitude)

6.4 * 10^6 not 3.4 *10^6
(remembered Mars, not earth)

464m/s

YEEEEEEEEEET

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