Asked by Katelyn
If the rotational speed of a CD changes from 550 rpm to 200 rpm as it plays 30 minutes of music, what is the CD's average rotational acceleration?
Answers
Answered by
bobpursley
acceleration=(wf=wi)/time
= wondering waht units you want, I will do it in rad/sec^2
= (200*2PI-550*2PI)/(30*3600) s^2
= wondering waht units you want, I will do it in rad/sec^2
= (200*2PI-550*2PI)/(30*3600) s^2
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