7. Laws of Sines, Cosines and Vectors
The Law of Cosines
7. Laws of Sines, Cosines and Vectors The Law of Cosines
36PRACTICE PROBLEM
A swimming champion is swimming across a river at a bearing of 122°. If she swims at 10 mph in still water, determine the resulting speed and the bearing of the champion. The speed of the current in the river is 3 mph and it is coming from the east.
A swimming champion is swimming across a river at a bearing of 122°. If she swims at 10 mph in still water, determine the resulting speed and the bearing of the champion. The speed of the current in the river is 3 mph and it is coming from the east.