two cars a and b are running in the same direction .car a had already covered a distance of 60 km when car b started running . what was the speed of car a
40 km/h
60km/h
45km/h
none
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Answer:
since both are moving eastwards
Va = +60km/hr
Vb = 50km/hr
relative speed Vab = 60-45= 15km/hr
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