Example 3-6-2 - Maple Help
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Chapter 3: Applications of Differentiation

Section 3.6: Related Rates

Example 3.6.2

At 1:00 PM a ship traveling at 9 knots sets sail north-east along a line that makes a 30° angle with a line running due east.  An hour later, a second ship sets sail due north, and at 11:00 PM, the distance between the ships is observed to be increasing at a rate of 97/7 knots.  Assuming it travels at constant speed, how fast is the north-bound ship traveling?

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