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Constant angular acceleration problem

  • #1
Ok so here is the problem

A centrifuge operates at 3600 rpm. When switched on it rotates 72 times before reaching operational angular speed. Find the constant angular acceleration while its speeding up.

Ok so I already know I needed to convert rpm to rad/sec which I did. I'm stuck here because the formula I have for ang acc is (Change in W)/ time. But I don't know time or ang acc. Thanks for the help btw
 

Answers and Replies

  • #2
tms
644
17
You don't know the time, but you do know the "distance". The solution is analogous to linear motion in 1 dimension.
 

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