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1. A river flowing at 3m/s due east. A boat, whose speed in still water is 5m/s, is steered in the direction on a bearing of 330degrees. Find the resultant velocity of the speedboat. 2. The speed of an aircraft in still air is 300km/h. The wind velocity is 60km/h from the east. The aircraft is steered on the course in the direction 060degrees. Find the true velocity of the aircraft.

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1) 7.7447 m/s due 341.17 degrees
2) 274.95 km/hr due 70.893 degrees

Posted on Aug 03, 2010

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