A 1000-kg car is driving toward the north along a straight horizontal road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to a rest uniformly in a distance of 190 m. What are the magnitude and direction of the net force applied to the car to bring it to rest?
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We know that the final velocity (v) is 0 m/s (since the car comes to rest), the initial velocity (u) is 20 m/s (the speed of the car before braking), and the distance (s) is 190 m. We can use the equation of motion v^2 = u^2 + 2as to find the acceleration Show more…
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