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A Grinding Wheel Is Spinning at a Rate of 20

Question 45

Short Answer

A grinding wheel is spinning at a rate of 20.0 revolutions per second. When the power to the grinder is turned off, the grinding wheel slows with constant angular acceleration and takes 80.0 s to come to a rest.
(a) What was the angular acceleration of the grinding wheel as it came to rest?
(b) How many rotations did the wheel make during the time it was coming to rest?

Correct Answer:

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(a)1.57 ra...

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