two cars are moving along a straight highway. Car A has a constant speed of 80km/h and the speed of car B is 110km/h. At t=0, car B is beyond car A by 45km. What is the distance travelled by Car A before Car B catches up to it?
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Explanation:
relative speed of care B wrt A = 110-80 =30
time taken = 45/30 = 1.5 hours
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