
#1
Sep1011, 09:46 PM

P: 159

1. The problem statement, all variables and given/known data
3. Draw figures showing how you would combine a 6 N force and an 8 N force to obtain a resultant force with magnitude (a) 14 N; (b) 2 N; (c) 10 N. 2. Relevant equations 3. The attempt at a solution I just don't know where to start or what equation to use. 



#2
Sep1011, 11:38 PM

Emeritus
Sci Advisor
PF Gold
P: 5,198

Do you understand how to calculate a vector sum graphically? That's all this question is really about...




#3
Sep1011, 11:41 PM

P: 159





#4
Sep1011, 11:43 PM

P: 159

Combining forces.
Oh wait, like draw a straight line with 8 and 6 for 14, while drawing lines with arrows towards each other for 2?
14 >> 2 >< 



#5
Sep1011, 11:49 PM

Emeritus
Sci Advisor
PF Gold
P: 5,198





#6
Sep1011, 11:53 PM

P: 159

I don't really know how to add vectors that well, but wouldnt there be a 90 degree angle between 6 and 8 to give me 10, since 8^2+6^2 square root= 10. Thanks. 



#7
Sep1111, 12:03 AM

Emeritus
Sci Advisor
PF Gold
P: 5,198

http://en.wikipedia.org/wiki/Euclide...nd_subtraction 



#8
Sep1111, 12:08 AM

P: 159

I definitely understand what I'm suppose to do much better. 


Register to reply 
Related Discussions  
Parallelogram Rule for combining forces (moments)  Classical Physics  2  
Combining equations.  Introductory Physics Homework  3  
combining f(x) and g(x)?  Precalculus Mathematics Homework  4  
Law of combining volumes  Biology, Chemistry & Other Homework  1  
Combining H2 with 0  Chemistry  8 