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Posted by on Tuesday, February 2, 2010 at 5:38pm.

f a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.5 m/s2 , how long does it take for the antelope to reach a speed of 20 m/s?

  • physics - , Tuesday, February 2, 2010 at 6:06pm

    Given

    Vi = 0 m/s {rest}
    a = 1.5 m/s^2
    Vf = 20 m/s

    Vf = Vi + at
    t = Vf/a

    Vi cancels out

    ** Plug in and you should get the speed as 13.3 s

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