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posted by  Whackypaki on 6/4/2007 11:05:46 AM  |  status: Live  

Direction and vectors

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   hey guys there are three parts to the problem I got how to do B and C but can someone please help me with part A. I wanna draw the vectors to scale and find the direction. Please help thank you.
 
 
Problem.   Cyclist A travels at a steady 10m/h in a direction 53degrees N of E.  Cyclist B begins at teh same time from the same point, at a steady speed of 8m/h in a direction 30 degrees S of E.  At the end of 2 hours they stop for a break.
 
(A) draw to scale the vectors of displacement for both cyclists and make an estimate from your drawing of the distance they are apart and the direction of B as seen from A, measured relative to due E.
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posted by HungryHungryHippo on 6/4/2007 12:27:43 PM  |  status: Live
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"u r the best thanks a lot"
Response Details:
After two hours, cyclist A has traveled 20 miles, and cyclist B has traveled 16 miles (in their respective directions.):



The distance apart can be estimated by drawing and measuring the vector from the tip of vector A to the tip of vector B.
Hope I have helped.  Anyone feel free to correct any mistake I may have made.
Oracle
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posted by HungryHungryHippo on 6/4/2007 12:27:59 PM  |  status: Live
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Response Details:
From the picture, we can tell that, as seen from A, the direction of B would be the angle between them, which is 53o + 30o = 83o from the direction of A.
Hope I have helped.  Anyone feel free to correct any mistake I may have made.
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