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Two parallel paths 20 m apart run east–west through the woods. Brooke walks east on one...

Two parallel paths 20 m apart run east–west through the woods. Brooke walks east on one path at 7 km / h, while Jamail walks west on the other path at 5 km / h. If they pass each other at time t = 0 , how far apart are they 11 s later, and how fast is the distance between them changing at that moment?

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