A mechanic pushes a 2.8x10^3kg car from rest to a speed of, Ask an Expert

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A mechanic pushes a 2.8X10^3kg car from rest to a speed of v, doing 4600 J of work in the process. During this time, the car moves 20.0 m. Neglecting friction between car and road, find each of the following.

(a) the speed v

(b) the horizontal force exerted on the car

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