SOLUTION: Two cars start from the same point. One travels south at 75 mi/hr and the other travels east at 45 mi/hr. At what rate is the distance between them increasing three hours later?
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Question 911690: Two cars start from the same point. One travels south at 75 mi/hr and the other travels east at 45 mi/hr. At what rate is the distance between them increasing three hours later?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
r=sqrt(45^2+75^2)=15sqrt(34)=87.46 each hour
The distance increases by 87 miles but the rate is still 87 mph no matter how many hours pass.
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