# Homework Help: Vector 2

1. Sep 7, 2009

### luiseduardo

Determine, using the vector components, the module of the vector sum of the four vector data in the figure.
Consider = 3V2 inches, b = 3 cm, c = 6 cm and d = 5 cm.
Adopt: sin α (alpha) = 0.60; cos α (alpha) = 0.80 and
sin 45 degrees = cos 45 degrees = V2/2

http://img233.imageshack.us/img233/5909/sssfv.jpg [Broken]

Last edited by a moderator: May 4, 2017
2. Sep 7, 2009

### CFDFEAGURU

If you are looking for help, please show an attempt at the solution. Don't just post the question and expect it to be answered.

Thanks
Matt

3. Sep 7, 2009

### HallsofIvy

Do you mean that the length of vector a is $3\sqrt{2}$ inches? And why in the world would one length be given in "inches" and the other in "cm"? Are you sure a is not $3\sqrt{2}$ cm as well?

Since the problem says "using the vector components", what are the vector components of the four vectors?

4. Sep 8, 2009

### luiseduardo

a = 3V2 cm , b = 3 cm, c = 6 cm e d = 5 cm.

sen α (alpha) = 0,60; cos α (alpha) = 0,80; e sen 45 graus = cos 45 graus = V2/2

And CFDFEAGURU, I don't know how to do this question, please if anyone knows how to do please tell me. I have the answer, but I don't know how to do.