your father is driving a car that is travelling in a straight line with a speed of 16m\s. when the lights turn to yellow, he applies the break and makes a full stop for 4 seconds (this is, the lights turns red). what is the acceleration of the car?
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Answer:
55km/h; your best deceleration rate has the magnitude a=5.18m/s
2
. Your best reaction time to begin braking is T=0.75s. To avoid having the front of your car enter the intersection after the light turns red, should you brake to a stop or continue to move at 55km/h if the distance to the intersection and the duration of the yellow light are (a) 40m and 2.8s, and (b) 32m and 1.8s? Give an answer of the brake, continue, either (if either strategy works), or neither (if neither strategy works and the yellow duration is inappropriate).
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Sana maka tulong;