Posted by Anonymous on Saturday, December 4, 2010 at 2:07am.
Add the two vectors.
Net displacement west is 145 + 65 cos45
Net displacement south is 65 sin45
That did not work...
You must not have done the vector addition correctly. If you show your work, the error can probably be found.
You will need to use the Pythagorean relation for the magnitude.
The sin and cos of 45 degrees are both 0.707
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