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Qi Hang Area A Property Telephone

(1) P is perpendicular to BP. The speed of the ship in this direction can be the minimum.

(2) (prompt; Using Pythagorean theorem and similarity, we can find out the length of each side, and then express the time t 1 required for B ship to get from B to M. At this time, t 1 is the time required for A ship to intercept, and then PM/t 1 is its minimum speed.) Minimum speed: aV0/b time: b 2 * root number b 2.

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