Two cars

Car A1 goes at an average speed of 106 km/h and the second car, A2, goes at 103 km/h. How many seconds will it take car A1 to circulate car A2? Assume that both cars are 5 meters long and the safety gap between cars is 1.5 meters.

Correct answer:

t =  15.6 s

Step-by-step explanation:

t=s/v s=2(5+1.5)=13 m v=(v1v2)/3.6=(106103)/3.6=0.833 m/s  t=13/0.833=15.6 s

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