SOLUTION: The police car is chasing the getaway car of bank robbers 7 1/2 km ahead. If the speed of the police car is 5 kph more than that of the getaway car, how long will it take the polic
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Question 389208: The police car is chasing the getaway car of bank robbers 7 1/2 km ahead. If the speed of the police car is 5 kph more than that of the getaway car, how long will it take the police car to overtake the getaway car? Found 2 solutions by mananth, jrfrunner:Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! The police car is chasing the getaway car of bank robbers 7 1/2 km ahead. If the speed of the police car is 5 kph more than that of the getaway car, how long will it take the police car to overtake the getaway car?
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catch up speed = 5 km/h
distance = 15/2 km
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time they catch = (5)/(15/2)
=5*2/15
=2/3 hours or 40 minutes
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m.ananth@hotmail.ca
You can put this solution on YOUR website! d-distance to make up= 7.5 km
r=speed differential= 5kph
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d=r*t or t=d/r
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t=7.5/5=1.5 hours or 90 minutes