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Suppose You Have a Spool of Thread That Can Rotate ω|\vec{\omega}|

Question 1

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Suppose you have a spool of thread that can rotate around a fixed axis as you pull thread off it. If you pull the thread with your hand so that the thread always lies along a certain fixed line, how will your hand's speed as it moves compare to ω|\vec{\omega}| , where RR is the spool's radius and RωR|\vec{\omega}| is angular speed?


A) The hand's speed will be greater than RωR|\vec{\omega}| .
B) The hand's speed will be less than RωR|\vec{\omega}| .
C) The hand's speed will be equal to RωR|\vec{\omega}| .
D) The hand's speed has nothing to do with RωR|\vec{\omega}| .

Correct Answer:

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