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At noon, ship A is 30 nautical miles due west of ship B...

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At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 17 knots and ship B is sailing north at 19 knots. How fast is the distance between the ships changing at 4 PM, in knots? (1 knot is a speed of 1 nautical mile per hour)
- The final result is not around 25 (i.e. 25.XX is not correct). Please check your result to ensure its correctness.
- This problem is absolutely correct and the result is definitely not 25.XXX.

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Solution Summary

The solution determines how fast the distance between the ships changing at 4 PM in knots is determined.

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Ship A sails westward at 17 knots, ship B sails northward at 19 knots, so if they started at the same point, their distance should have changed at about 25.5 nautical miles per hour,that's 25.5 knots. But since they didn't ...

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