From 0 to 20 seconds the vehicle is at a constant speed of 12 m/s. In this time it covers a distance of 20 s × 12 m/s = 240 m, the area of the rectangle. From 20 to 30 seconds the car decelerates ...
The greater the reaction time the longer the thinking distance. During the reaction time, a car travels at constant speed because the driver has stopped pressing the accelerator but has not yet ...
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