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Math Help - Kinematics

  1. #1
    Newbie
    Joined
    Oct 2007
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    21

    Kinematics

    Hi

    I'm trying to do these two questions.

    For the 1st Question B=at (Im presuming) from a=an+at

    From this at=R*alpha

    Therefore 6.3=0.35*alpha
    alpha=18rad/s^2

    Then what formula do you use? you cant really use w=wo+alpha*(t) because u dont know the time nor the angular velocity
    you cant use alpha*d(theta)=wdw either

    So im stuck here on Q1

    In regards to Q2

    Would you do the same as in the question in this thread I posted early but differentiate again to find the velocity along x? I tried to do this but I would come in to problems and get unrealistic answers.

    http://www.mathhelpforum.com/math-help/advanced-applied-math/20019-relative-motion-piston-motion.html

    Tell me what you think

    All Help would be most appreciated!

    Edward
    Attached Thumbnails Attached Thumbnails Kinematics-week10.jpg  
    Last edited by edeffect; October 14th 2007 at 03:04 AM. Reason: Defined Question Further
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  2. #2
    Newbie
    Joined
    Oct 2007
    Posts
    21

    Please Help

    Hey All

    Could somebody please assist me in these questions Im really stuck and I really wont to learn how to do this I find it quiet interesting.

    Thanks Again

    Edward
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  3. #3
    Newbie
    Joined
    Oct 2007
    Posts
    21

    Could Somebody Please Check this Working?

    Hey Ive solved both of these question to the best of my ability and I got the first question right! Just need somebody to please check my working for the second question.

    Thanks
    Edward
    Attached Thumbnails Attached Thumbnails Kinematics-piston-motion.jpg  
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