What is the linear speed of a point a) on the equator. b) On the Arctic Circle (latitude 66.5 degrees N), and c) at a latitude of 45.0 degrees N, due to the Earth's rotation.
Im not sure how to start this!! :( For part A in my book it says the Earths radius is 1.74x10^3 km. Would I convert this to meters and use it in this equation?:
(1740m)(360/2pi rad)? Am I on the right track?

Question

What is the linear speed of a point a) on the equator. b) On the Arctic Circle (latitude 66.5 degrees N), and c) at a latitude of 45.0 degrees N, due to the Earth's rotation. 
Im not sure how to start this!! :( For part A in my book it says the Earths radius is 1.74x10^3 km. Would I convert this to meters and use it in this equation?:
(1740m)(360/2pi rad)? Am I on the right track?

experimentx · Answer

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Use the relation 
$$\huge V = r  cross \omega=r\omega \sin\theta$$ = 
Read $ \theta $ from top angle.

experimentx · Answer

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