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Physics help?
Your computer hard drive rotates at a rate of 10,000rpm. If I turn off the computer and it takes 17s for it to come to a complete stop, what is the angular acceleration of this motion?
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- oubaasLv 71 year ago
angular speed ω = 2PI/60*n = 0.10472*10,000 = 1,047.2 rad sec
angular acceleration α = (0-ω )/t = -1,047.2/17 = -61.60 rad/sec^2
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