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Normal and tangential acceleration

  1. Jan 8, 2016 #1
    1. The problem statement, all variables and given/known data
    why the normal acceleration is 6 rads^-1 ? It's not stated in the question , right?
    Can someone explain more about normal acceleration? i couldnt understand it . I only know that when the rod is rotated , it has tangential acceleration

    2. Relevant equations


    3. The attempt at a solution
     

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  3. Jan 8, 2016 #2

    BvU

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    It's not stated in the question. But not in the solution either! Something has to keep G in a circular trajectory and that requires an acceleration ##\ \omega^2 r.\ \ \ ## That ##\,\omega## is given in the problem statement!

    For the kinematics of rotational motion: this (only the comparison), that or any textbook ! Did I forget hyperphysics?
     
    Last edited: Jan 8, 2016
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