SOLUTION: A car is travelling northwards on an elevated expressway 6 m above ground at a speed of 72 km/h. At noon another car passes under the expressway, at ground level, travelling west,

Question 973295: A car is travelling northwards on an elevated expressway 6 m above ground at a speed of 72 km/h. At noon another car passes under the expressway, at ground level, travelling west, at a speed of 90 km/h.
How far apart, in metres, are the two cars 40 seconds after noon?
b At this time the first car stops, while the second car keeps going. At what time will
they be 3.5 km apart? Write your answer correct to the nearest tenth of a second.
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
No way to know. Where is the northward 72km/h car at noon?
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