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physics

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A little red wagon with mass 8.00 moves in a straight line on a frictionless horizontal surface. It has an initial speed of 3.80 and then is pushed 4.7 in the direction of the initial velocity by a force with a magnitude of 10.0 .

  • physics -

    Mass = 8kg
    Vo = 3.8 m/s.
    d = 4.7 m.
    F = 10 N.

    F = m*a
    a = f/m = 10/8 = 1.25 m/s^2.

    V^2 = Vo^2 + 2a*d
    V^2 = (3.8)^2 + 2.5*4.7 = 26.19
    V = 5.1 m/s = Final velocity.

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