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Physics question

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  • 12-05-2007 5:24pm
    #1
    ninebeanrows
    Registered Users Posts: 12,778 ✭✭✭✭


    Just revising the mechanics experiments, i have a question.

    When doing the conservation of momentum experiment, using the light-gates how do we get the value of u and the vale of v ? My book just shows the timer and t1 and t2.. and says you evaluate u and v from this..

    But how do you actually find the initial velocity and the final velocity?

    Thanks ;)


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    #2
    ZorbaTehZ
    Registered Users Posts: 2,149 ✭✭✭ZorbaTehZ


    t1/t2 is the time it takes for the rider to pass each gate.
    Speed = Distance/Time
    Therefore, the length of the rider divided by t1 gives u and the length of the rider divided by t2 gives v.


  • Options
    #3
    ninebeanrows
    Registered Users Posts: 12,778 ✭✭✭✭ninebeanrows


    ZorbaTehZ wrote:
    t1/t2 is the time it takes for the rider to pass each gate.
    Speed = Distance/Time
    Therefore, the length of the rider divided by t1 gives u and the length of the rider divided by t2 gives v.


    Cheers, the length of the card it is..

    ;)


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