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September 20, 2014

September 20, 2014

Posted by **JAYZ** on Friday, November 8, 2013 at 8:27pm.

What is the angular acceleration of the wheel?

- Physics -
**Damon**, Friday, November 8, 2013 at 8:36pmThe only information of any use in this lengthy paragraph is:

wheel stops from 47.1 rev/min in 5.65 sec

we want radians and seconds

47.1 rev/min * 2 pi rad/rev * 1 min/60 s

= 4.93 radians/second

acceleration = change in velocity/change in time

= 4.93 rad/s / 5.65 s

= .873 radians/second^2

- Physics -
**Damon**, Friday, November 8, 2013 at 8:38pmOh, and the answer is negative (deacceleration)

- Physics -
**JAYZ**, Friday, November 8, 2013 at 9:33pmyea i had the answer but forgot the negative, thanks man! really appreciate it!

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