Question

25. A motorist travelling at 13 ms-l approaches traffic lights, which turn red when he is 25 m away from the stop line. His reaction time (i.e. the interval between seeing the red light and applying the brakes) is 0.7 s and the condition of the road and his tyre is such that the car cannot slow down at the rate of more than 4.5 ms-2. If he brakes fully, how far from the stop line will he stop and on which side of it ? [Ans. 2.9 m beyond the line)​

Answer 1

Answer:

2.9 m beyond the

Explanation:

Reaction time is the time it takes to process that the lights have turned red

Till it's brain understands(0.7s) He moves with same speed as brain doesn't give signal to legs to stop

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