- #1
Mdhiggenz
- 327
- 1
Homework Statement
Find the magnitude of the vector that is the sum of the three vectors , , and in the figure : figure is the link
http://imageshack.us/photo/my-images/14/yf0134.jpg/
Homework Equations
The Attempt at a Solution
What I did was obtain Ax=0 Bx=7.5
Ay=-8.00 and B13
My problem came when trying to get Cx and Cy.
The way the vector is placed in the figure confuses me but I got Cy= 12sin(25)= -10.87 since it is on the negative side, and Cx= 12Cos25=-5.07.
I then got the squareroot of Ax+Bx+Cx^2+Ay+By+Cy^2
Did I create the triangle wrong? If so how can I make sure to not make this same mistake