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OpenStudy (anonymous):
A machine shop grinding wheel accelerates from rest with a constant angular acceleration of 2.6 rad/s^2 for 7.2 s and is then brought to rest with a constant angular acceleration of -4.2 rad/s^2. Find the total time elapsed. ( I already found found the total time which is 11.7 s... but i cant seen to find the total Number of revolutions turned Find the total number of revolutions turned. (?)
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OpenStudy (anonymous):
can someone help me
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