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The connection between angle and time is what's known as angular velocity,
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which we give this symbol ω--it looks sort of like a funny w.
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In this quantity describes how quickly in radians we progress around this circle
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and so it's units are in radians/second and the equation that describes this
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is that the angle is equal to the ω*t--the angular velocity times the elapsed time.
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I should put a Δ here. This is how much you've changed your angle.
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So let's say we started an angle of 0 degrees, 0 radians were down here,
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and I have an angular velocity--let's keep it simple of 1 radian/sec.
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So what I want to know is how long will it take to complete one cycle
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and you'll have to remember what one cycle means in radians when four cycle
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given an angular velocity of 1 radian/second--enter your answer here.