An automobile is traveling at 20 m/s when the driver applies the brakes

PHYSICS · Subjective · CBSE · Physics · Motion · Motion

Problem

An automobile is traveling at 20 m/s when the driver applies the brakes, producing a constant acceleration of –4.0 m/s² until the speed is reduced to 8.0 m/s. Immediately afterward, the brakes are released and the car accelerates at 2.0 m/s² for 5.0 s. Determine the total displacement of the car during the entire braking and re-acceleration sequence.

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