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  1. #1

    Quick Physics question!

    If i have the acceleration, and the time... how do i find the distance is travels?

    For example:

    an object moving 2m/s^2

    How far will it move after 10(s) ?

  2. #2
    Join Date
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    s = ut + 0.5at^2

    where:

    s = displacement (m)
    u = initial velocity (m/s)
    v = final velocity (m/s)
    a = acceleration (m/s^2)
    t = time (s)

    Look for SUVAT equation stuff, I did them both in Physics and Maths.
    Steve

  3. #3
    you indicated 'v' as final velocity, but it doesnt seem to appear in the equation?

  4. #4
    Join Date
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    It doesn't have to appear in the equation, if you wanted to find final velocity, you would use:

    v= v0 + at (v0 is initial velocity, v is final)

    But you are trying to find the position, so Steve's equation is correct, you would use:

    x= x0 + v0*t + (1/2)at^2 (x0 is initial position which is zero, v0 is initial velocity which is zero if he isn't moving when he starts)

    So your answer would be...100 meters.
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  5. #5
    ah ok, thanks

  6. #6
    This thread is making me happy.

    Physics and hosting in the same thread! Mmmmmmmmmmmm


  7. #7
    Join Date
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    Ahhh, I thought I escaped physics a couple years ago when I finished Ph 30. It just keeps coming back to haunt me wherever I go. Make it stop, Make it stop!

  8. #8
    Join Date
    Jun 2001
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    329
    yup

    s = ut + 1/2at^2

    and

    v = u + at

    work together ... just to finalise the thread lol Gotta love mechanics ....

  9. #9
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    Damn... this brings back some not too pleasant memories. Mechanics is not the best part of physics
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  10. #10
    Join Date
    Jun 2001
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    yup mechanics is a subset of physics. It merely overlaps physics btu I found mechanics much more interesting compared to physics in general and we covered the kind of stuff above in mechanics hence the mentioning.

  11. #11
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    I am still studying physics in school...

    Even though I am quite good at it, I intend to forget EVERYTHING about it after I leave school...
    New site: www.talkutas.com

  12. #12
    Join Date
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    Originally posted by freak
    I am still studying physics in school...

    Even though I am quite good at it, I intend to forget EVERYTHING about it after I leave school...

    Thats why god gave us computers with memory and internet with access to information.

    You should hook up all your friends in school with a P2P file share program to do some grid homeworking and assignment sharing.


  13. #13
    Join Date
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    Originally posted by RajanUrs
    Thats why god gave us computers with memory and internet with access to information.

    You should hook up all your friends in school with a P2P file share program to do some grid homeworking and assignment sharing.

    And spend all that time developing the software when just going to school to copy is much more efficient?

    I know, it is the ICT age now, but sometimes tradition is still better
    New site: www.talkutas.com

  14. #14
    er.... acceleration x time = d?
    isn't that enough. O.o

  15. #15
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    No, that would be "speed x time = displacement"
    Steve

  16. #16
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