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You are not logged in. #1 20130721 23:15:00
Bearing problem.An aeroplane flew from town A, travels 200km at a bearing of 135 digree to town B. Then travels 250km from town B at a bearing of 045 digree to town C. Find using the vector approach Last edited by EbenezerSon (20130722 00:38:02) #3 20130722 02:21:29
Re: Bearing problem.OK here's the diagram below. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #4 20130722 18:56:35
Re: Bearing problem.I had: #5 20130722 19:25:35
Re: Bearing problem.hi EbenezerSon You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #6 20130722 19:36:08
Re: Bearing problem.This how I solved it: #7 20130722 19:43:57
Re: Bearing problem.There several examples in the book, which distances and bearings was not provided, one example is what above. #8 20130722 19:49:22
Re: Bearing problem.You have to be told the second bearing so it looks like the book forgot to tell you this. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #9 20130722 19:54:10
Re: Bearing problem.There are several examples in the book, which there is no distance and bearing of locations provided, #10 20130722 21:05:03
Re: Bearing problem.
60 is the angle with an easterly direction. 0 is the angle with a northerly direction. So you have muddled the components. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #11 20130723 06:29:24
Re: Bearing problem.Yes, I have had it right! I missed it up then. I would post more in which distances and bearings are not given. #12 20130723 06:38:56
Re: Bearing problem.This is it: #14 20130723 21:33:45
Re: Bearing problem.My final answers are different from what the book has. I used vector approach though. This is the respective answers from the book. Last edited by EbenezerSon (20130723 21:48:33) #16 20130723 23:04:19
Re: Bearing problem.But please, did you use the vector approach? If so, please show me the workings, that I could learn. #18 20130724 04:14:30
Re: Bearing problem.I did use the vector approach much like you. I haven't kept my working (on Excel) but the shot below shows my working to get the missing bearing on the previous question. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #19 20130724 04:51:15
Re: Bearing problem.I used zeros for the unprovided bearings. And got every thing wrong. I don't know any method well, apart from the vector approach. I don't seem to understand your workings, but see how I did mine: #20 20130724 05:55:24
Re: Bearing problem.It seems my inability to know the bearings always cost me. #21 20130724 17:50:31
Re: Bearing problem.hi EbenezerSon and the bearing angle with Unfortunately, the bearing may not come out correctly from the atan because (for example) atan(1) may be 45 or it may be 225. There is no way the calculator can 'know' which answer to use; so you'll have to look at the diagram to decide on the correct bearing. eg. If you get 45 and you can see the answer should be SouthWest you can correct your answer by adding 180. In your example
first stage East = 0 North = 10 You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #22 20130724 21:55:51
Re: Bearing problem.So should I always use east and north as my guide?. Last edited by EbenezerSon (20130724 22:00:51) 