Homework Help: Physics

Posted by matt on Thursday, September 20, 2007 at 5:12pm.

a dentists drill starts from rest. after 5.39 seconds of constant angular accleration, it is rotating at a rate of 2.85E4 rpm.

through what angle did it rotate in the process?

(i just dont know what formula to use)

Physics - bobpursley, Thursday, September 20, 2007 at 6:16pm
Theta= wi*time + 1/2 angaccel*time^2

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