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#1 2012-12-10 13:49:32

Registered: 2008-07-01
Posts: 153

Vector Problem

Ima Hyker is camped out in the forest. After breakfast she walks 16 km on a bearing
of 327° then she walks 12 km on a bearing of 237°. What bearing will Ima have to
walk to head straight back to her camp? (nearest degree)

I know how to work it mathematically, but I need a good visual representation smile! Could any of you do me a favor and graph it to show me to you can graphically look at this?

The best thing about life is you don't know what to expect


#2 2012-12-10 14:40:41

From: Bumpkinland
Registered: 2009-04-12
Posts: 105,257

Re: Vector Problem

Hi infinitebrain;

I know nothing about bearings. I get lost going around the corner. I navigate by taking a big ball of twine with me and letting it out as I go. Then I follow it back. I do not use bread crumbs because wasting food is wrong.

Here is what I drew:

View Image: 2012-12-10_183953.gif

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.


#3 2012-12-10 19:55:33

bob bundy
Registered: 2010-06-20
Posts: 7,651

Re: Vector Problem

hi infinitebrain,

To avoid confusion amongst navigators, and so that they can use a magnetic compass to determine which way to go, bearings are measured clockwise from North.

I have made a sketch of the problem.  The distances and angles are not accurately shown.


View Image: infinitebrain4.gif

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei


#4 2012-12-11 12:43:17

Registered: 2008-07-01
Posts: 153

Re: Vector Problem

Thank you bob and bobbym! You've both been a enormous help! big_smile

The best thing about life is you don't know what to expect


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