SOLUTION: A car leaves Columbia at 1:00pm traveling at 45mph. A second car leaves Columbia at 2:00 traveling at 50mph. How long will it take the second car to overtake the first car?

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 Question 375156: A car leaves Columbia at 1:00pm traveling at 45mph. A second car leaves Columbia at 2:00 traveling at 50mph. How long will it take the second car to overtake the first car?Answer by mananth(12270)   (Show Source): You can put this solution on YOUR website!Car leaves Columbia at 1.00 pm 45 mph second car leaves at 2.00pm 50 mph .. In 1 hour first car has traveled 45 miles. .. They are travelling in the same direction so effective speed = 50-45 = 5 mph. every hour second car makes up 5 miles. distance is 45 miles .. time = d/r t=45/5 t = 9 hours .. m.ananth@hotmail.ca