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A car slows down from 105 km/h to 80 km/h over the course of 6.0 s. The force of the brakes was 1000 N. What is the work done by the brakes on the car?

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a = -25km/hr / 6s = -4.25 km/hr/s = -1.18 m/s^2
s = vt+at^2 = 29.17 * 6 - 0.59*4^2 = 165.58 m
work = force * distance = 165580 J

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