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# M2: motion round a circle watch

1. A metre is approximately one ten-millionth of the distance from the North Pole to the equator. Assuming that the earth is a sphere and that its axis of rotation is stationary calculate the speed of a building on the equator in ms^-1.
2. (Original post by _ocean_)
A metre is approximately one ten-millionth of the distance from the North Pole to the equator. Assuming that the earth is a sphere and that its axis of rotation is stationary calculate the speed of a building on the equator in ms^-1.
How could you relate the period of the rotation to the velocity
3. (Original post by samb1234)
How could you relate the period of the rotation to the velocity
I'm not sure? Is the angle 2 pi?
4. (Original post by _ocean_)
I'm not sure? Is the angle 2 pi?
Well how long does it take for us to do one full rotation?
5. too late

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