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Math Help - Rotational Dynamics

  1. #1
    Member srirahulan's Avatar
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    Cool Rotational Dynamics

    A Cylinder (mass = 10kg , radius= 0.2m) is mounted between two walls (Cylinder can rotate freely). At the top of the first wall a mass of 5 kg moving with a constant velocity 10m/s and touch the cylinder and jump to the other wall.Find out the velocity when it leave from the cylinder?

    Please show me the way to solve this problem.


    Here i attach a picture of the problem.....
    Attached Thumbnails Attached Thumbnails Rotational Dynamics-27112012334.jpg  
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  2. #2
    Forum Admin topsquark's Avatar
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    Re: Rotational Dynamics

    Quote Originally Posted by srirahulan View Post
    A Cylinder (mass = 10kg , radius= 0.2m) is mounted between two walls (Cylinder can rotate freely). At the top of the first wall a mass of 5 kg moving with a constant velocity 10m/s and touch the cylinder and jump to the other wall.Find out the velocity when it leave from the cylinder?

    Please show me the way to solve this problem.


    Here i attach a picture of the problem.....
    Unless I'm missing something we either need to know the change in rotational speed of the cylinder or that there is a frictional force between the cylinder and the mass. (ie we need the coefficient of friction.) Otherwise we can't solve the problem. (Or rather, there is no change in the speed of the mass if everything is given.)

    -Dan
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  3. #3
    Forum Admin topsquark's Avatar
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    Re: Rotational Dynamics

    Please do not double post. Please refer all comments to the other thread.

    -Dan
    Last edited by topsquark; November 27th 2012 at 06:34 AM.
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