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    clemross's Avatar
    clemross Posts: 1, Reputation: 1
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    #1

    Sep 7, 2010, 02:48 PM
    kinematics help? How to calculate acceleration velocity with just distances and times
    Question: A, B and C are three points on a straight road such that AB= 80metres and BC=60metres. A car traveling with uniform acceleration passes A, B and C at times T= 0, T=4s and T=6s respectively. Modelling the car as a particle find it acceleration and velocity at point A...

    Any help?? Many thanks :)
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Sep 7, 2010, 09:58 PM

    1. Draw a quick sketch.

    2. Since there is a uniform acceleration, the motion of the car can be written as:



    So, you then have two equations:





    Solve for u and a, the velocity of the car at A and its acceleration.

    Post your answer! :)
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