14.5 Two coastal guard ships are 40 km apart, ship A being due north of B....

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14.5 Two coastal guard ships are 40 km apart, ship A being due north of B. Ship A is moving S 45 W with a velocity of 18 kmph while ship B is moving west with a velocity of 24 kmph. If the two ships can exchange signals when they are 30 km apart, when they can begin and how long they can exchange the signals? [Ans. They can begin after 57.44 minutes and continue upto 2 hr 38.8 minutes] 14.5 Two coastal guard ships are 40 km apart, ship A being due north of B. Ship A is moving S 45 W with a velocity of 18 kmph while ship B is moving west with a velocity of 24 kmph. If the two ships can exchange signals when they are 30 km apart, when they can begin and how long they can exchange the signals? [Ans. They can begin after 57.44 minutes and continue upto 2 hr 38.8 minutes]