Homework Help: Physics

Posted by Natasha on Monday, April 2, 2012 at 10:09pm.

A grindstone of radius 4.0m is initially spinning with an angular speed of 8.0 rad/s. The angular speed is then increased to 12 rad/s over 4.0s. Assume that the angular acceleration is constant. What is the average angular speed of grindstone?

Physics - bobpursley, Monday, April 2, 2012 at 10:10pm
You have to be kidding.

avg speed= (final+initial)/2

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