December 1, 2015

Homework Help: Calculus

Posted by Stuck on Thursday, June 17, 2010 at 9:31pm.

"At 9am ship A is 50 km east of ship B. Ship A is sailing north at 40km/h and ship B is sailing south at 30km/h. How fast is the distance between them changing at noon?"

I can never get these type of questions where two ships are heading in different directions and one is always ahead...please help!

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