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April 26th, 2012, 07:08 AM  #1 
Member Joined: Mar 2012 Posts: 44 Thanks: 0  geometric to component form  am i right?
Hi all, I just stuck understanding this question, if someone could help explain, that would be great thanks Three forces (and no others) act upon an object, which remains at rest. The forces are represented by the vectors P, Q and R, where P = ?4i ? 5j and Q = ?2i + 9j. give the magnitude and direction of the vector R, to one decimal place. How am I suppose to do this when I'm not given the component form for R? all I can think of would be P + Q + R = 0 so Q =  P  Q so Q would be ( 6 i  4 j) ? so its magnitude would be 7.2 and direction 33.7 am i right ? 
April 26th, 2012, 07:50 AM  #2  
Math Team Joined: Dec 2006 From: Lexington, MA Posts: 3,267 Thanks: 408  Re: geometric to component form  am i right? Hello, mathslog! Your arithmetic is off . . . Quote:
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April 26th, 2012, 08:30 AM  #3 
Member Joined: Mar 2012 Posts: 44 Thanks: 0  Re: geometric to component form  am i right?
Hello soroban Thanks for the quick reply, Your explanation helped out alot thankyou! made it much clearer to see 

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