Asked by Kayla
A disk in your computer spins at 5400 rpm. If this disk turns through 12 revolutions before coming to stop, find the disks angular velocity acceleration. Also find the time it takes to stop.
Answers
Answered by
Henry
Va = 5400rev/min*1min/60s*6.28rad/rev =
565.2 rad/s.
t = (12rev/5400rev) * 60s = 0.133 s.
V = Vo + at = 0
at = -Vo
a = -Vo/t = -565/0.133 = -4248 rad/s^2.
565.2 rad/s.
t = (12rev/5400rev) * 60s = 0.133 s.
V = Vo + at = 0
at = -Vo
a = -Vo/t = -565/0.133 = -4248 rad/s^2.
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