Addition of Vectors by means of Components

[RKNY]

Homework Statement

A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5 m, B = 14.0 m, and C = 23.0 m. Using the component method, find the magnitude and direction of the resultant vector A + B + C
http://www.webassign.net/CJ/cj6_1-55.gif" .

Homework Equations

Rx = Ax + Bx + Cx
Ry = Ay + By + Cy

The Attempt at a Solution

Components of A
Ax = 0
Ay = 5

Components of B
Bx = 14.0
By = 0

Components of C
Cx = 18.8
Cy = -23.0

Rx = 32.8
Ry = -18.2

Took the square root of Rx^2 + Ry^2 and found it out to be the answer of 37.5.

I put it in but it tells me that it isn't right?

 

[cristo]

Check your y component of vector C.

 

[RKNY]

Check your y component of vector C.

It worked out okay, thanks a bunch!

 

[pstfleur]

I have that exact problem now, and I can't come up with the correct answer

 

[tiny-tim]

Welcome to PF!

I have that exact problem now, and I can't come up with the correct answer

Hi pstfleur! Welcome to PF!

Show us what you've done, and where you're stuck, and then we'll be able to help!

 

[pstfleur]

Nevermind..Figured it out!

 

[pstfleur]

Thanks a lot thou, I will be sure to use this site through out the semester :)!

 

[darkphoenix11]

Can somebody please tell me how to figure out Cx and Cy. I'm completely lost on how to get those values.

 

[planck42]

Make a right triangle with C being the hypotenuse. Use the 35-degree angle in your construction.