1. Jan 29, 2007 #1

   shanest

   

   I've attached the problem as an image. I solved 20 and 21 very easily. For 22, my obvious instinct was to set dtheta/dt to 0, but that's an unsolvable equation. I'm obviously missing something key in solving 22. What is it?

    

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   shanest, Jan 29, 2007
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3. Jan 30, 2007 #2

   chanvincent

   

   obviously, your obvious instinct is not pointing you to the right direction....
   
   Try to set up a definite integral with appropiate limit.... (what is time t equal to when the wheel coming to rest?)

    

   chanvincent, Jan 30, 2007

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