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-   -   Finding acceleration and velocity (https://www.askmehelpdesk.com/showthread.php?t=148579)

  • Nov 4, 2007, 07:53 PM
    atlanticsun57
    Finding acceleration and velocity
    Anna walks off the end of a 10.0 m diving platform
    a) What is her acceleration in m/s2 toward the pool?
    b) how long does it take her to reach the water?
    c) What is her velocity when she reaches the water?
  • Nov 5, 2007, 04:10 AM
    terryg752
    Hints:

    any thing falling freely has acceleration (due to gravity) = g

    If u is initial velocity, a is acceleration, and s is distance travelled, the following quadratic
    will you give you the time taken t, which must be a positve number!

    s = ut + 1/2 at^2

    If you know time t, initial velocity u, acceleration a, the following gives you final velocity v:

    v = u + at


    I hope the above helps.
  • Nov 11, 2007, 12:31 AM
    pawel
    any thing falling freely has acceleration (due to gravity) = g

    If u is initial velocity, a is acceleration, and s is distance travelled, the following quadratic
    will you give you the time taken t, which must be a positve number!

    s = ut + 1/2 at^2

    If you know time t, initial velocity u, acceleration a, the following gives you final velocity v:

    v = u + at


    I hope the above helps.

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