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Math Help - A golf ball is released from rest at the top of a very tall bulding.

  1. #1
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    A golf ball is released from rest at the top of a very tall bulding.

    A golf ball is released from rest at the top of a very tall bulding.
    Neglecting air resistance , caclulate the position and velocity of the ball after 1 , 2 and 3 s

    Given :
    v0 = 0
    g = -9.81
    t 1,2,3

    now we use v = v0 + at for each time

    v = -9.81 X (1) =-9.81
    v = -9.81 X (2) = -19.6
    v = -9.81 X (3) = -29.7

    now we find Dx ?

    Is my step correct ?
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  2. #2
    MHF Contributor Unknown008's Avatar
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    v is correct.

    For the position, you can use:

    s = v_o t + \dfrac12 at^2
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