An optical disk drive in your computer can spin a disk at up to 10,000 rpm. If a

Question

An optical disk drive in your computer can spin a disk at up to 10,000 rpm. If a particular disk is spun at 5890 rpm while it is being read, and then is allowed to come to rest over 0.435 seconds, what is the magnitude of the average angular acceleration of the disk? i know that avr= /t so i know this first part but the next question If the disk is 12.0 cm in diameter, what is the magnitude of the linear acceleration of a point 1/15 of the way out from the center of the disk? An optical disk drive in your computer can spin a disk at up to 10,000 rpm. If a particular disk is spun at 5890 rpm while it is being read, and then is allowed to come to rest over 0.435 seconds, what is the magnitude of the average angular acceleration of the disk? i know that avr= /t so i know this first part but the next question If the disk is 12.0 cm in diameter, what is the magnitude of the linear acceleration of a point 1/15 of the way out from the center of the disk? If the disk is 12.0 cm in diameter, what is the magnitude of the linear acceleration of a point 1/15 of the way out from the center of the disk?

Explanation / Answer

angular acc be @ w1=5890rpm=5890*2pi/60=616.79rad/sec @t=w1 @=w1/t @=1417.92 rad/sec2 b)linear accelaration=r@=12*1417.92/15*100=11.34m/s2

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