Angular acceleration of a computer disk

AI Thread Summary
To find the average angular acceleration of a computer hard disk that spins at 5400 rpm and takes 8.4 seconds to reach this speed from rest, first convert 5400 rpm to radians per second, which equals 565.49 rad/s. The average angular acceleration can be calculated using the formula α = (final angular velocity - initial angular velocity) / time. Since the initial angular velocity is 0, the equation simplifies to α = final angular velocity / time. The result will provide the average angular acceleration in rad/s². Understanding these conversions and equations is crucial for solving angular physics problems effectively.
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Homework Statement



During normal operation, a computer's hard disk spins at 5400 rpm. If it takes the hard disk 8.4 s to reach this angular velocity starting from rest, what is the average angular acceleration of the hard disk in rad/s2?

Homework Equations



?

The Attempt at a Solution



I don't even know where to start. Physics is not my strong point, and I definitely do not like angular physics problems.
 
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See your other topic where I just posted my generic rotational motion advice

With that in mind, remember that 2pi radians/second = 1 revolution per second so you can convert 5400 rpm to rad/sec

So similar to the other problem you have "distance", time, and initial "velocity"(ie angle traveled, time, and initial angular velocity)
 

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