Maths Alevel Mechanics, Boat's Journey, Vectors, Bearings Problem? - sailing boat diagrams
A boat travels at a speed of 11 knots to the east. The current flows in a direction of 210 ° at a speed of 5 knots. What is the resultant velocity of the boat.
With a chart with the cosine law to solve this problem, it is fairly simple. . the solution is 7.123 knots.
http://i166.photobucket.com/albums/u94/j ...
That is my plan, but would for some reason used the book for cos30 and cos60. WHY ?!?!?!?!
Please give us jobs - and an explanation (preferably with a description of a picture or a drawing one) that I will explain why using cos30 that could replace cos60.
Best answer: 5 star, the solution is 7.123 knots.
Sailing Boat Diagrams Maths Alevel Mechanics, Boat's Journey, Vectors, Bearings Problem?
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