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| Math Central | Quandaries & Queries |
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Question from Narcisa, a parent: Lita and Rose start jogging on a 110 m circular track. They begin at the same point, but jog in opposite directions, lita at 8/3 meters per second and rose at 7/3 m per second. Find the number of times they they will pass each other during the first 15 minutes of jogging? |
Narcisa
Try a coordinate change. Suppose one of them stood still; at what speed would the other one have to run for the distance between them to change just as fast?
Good Hunting!
RD
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