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Physics

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A mechanic pushes a 3.6 multiplied by 103 kg car from rest to a speed of v, doing 4600 J of work in the process. During this time, the car moves 27.0 m. Neglecting friction between car and road, find each of the following.
(a) the speed v
m/s
(b) the horizontal force exerted on the car
N

  • Physics - ,

    (a) The final kinetic energy,
    (M/2)(Vfinal)^2,
    is the work done.
    (b) Since the work done is also
    F*X = F*27.0 m,
    you can solve for the horizontal force, F.

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