Posted by kelly on Thursday, March 3, 2011 at 8:48am.
9 rev/sec = 18 pi radians/sec. That is called tha angular speed, and usually has a symbol omega. Here, we often use w.
You need to provide a dimension along with the "diameter" number.
Multiply half the diameter (the radius) by the angular speed in radians per second to get the tangential speed.
Tangential speed = w*R
ok, i tried that and it's still giving me the wrong answer.
On one of the hints it says path/time. I'm so lost, haha
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