A 1550 kg car is initially at rest on level ground when the engine does 450 000 J of work on it. If all of the work is converted into kinetic energy, what is the final speed of the car?

24.1 m/s

Explanation:

Work = change in KE =

KE initial is 0 because the initial velocity is 0. Therefore, work is equal to final kinetic energy. With that:

With some algebraic manipulations,

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