SOLUTION: a bike is travelling 35km/h. A car is travelling 80km/h and begins 180km behind the bike. How long will it take the car to reach the bike?

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Question 348965: a bike is travelling 35km/h. A car is travelling 80km/h and begins 180km behind the bike. How long will it take the car to reach the bike?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a bike is travelling 35km/h. A car is travelling 80km/h and begins 180km behind the bike. How long will it take the car to reach the bike?
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The speed of the car relative to the bike is 45 kph (80 - 35).
180/45 = 4 hours.
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All motion is relative. Pick your frame of reference.