Homework Help: Finding the y-component from Vectorys

1. Jan 14, 2009

Jordash

1. The problem statement, all variables and given/known data
Suppose http://psdesignzone.com/PhysicsImages/formula1.gif and [URL]http://psdesignzone.com/PhysicsImages/formula2.gif[/URL] and http://psdesignzone.com/PhysicsImages/formula3.gif. What is the y-component of the sum http://psdesignzone.com/PhysicsImages/formula4.gif?

2. Relevant equations

http://psdesignzone.com/PhysicsImages/formula1.gif [URL]http://psdesignzone.com/PhysicsImages/formula2.gif[/URL] http://psdesignzone.com/PhysicsImages/formula3.gif http://psdesignzone.com/PhysicsImages/formula4.gif

3. The attempt at a solution

I'm sorry I really don't know what this means :( can anyone help?
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

Last edited by a moderator: Apr 24, 2017
2. Jan 14, 2009

NoMoreExams

3. Jan 14, 2009

Jordash

so you're saying 3+3+7-1-2? = 10

Why is it that?

Thanks for the help

4. Jan 14, 2009

NoMoreExams

5. Jan 14, 2009

NoMoreExams

And no you can't mix coefficients. Do you understand what vector notation is? Like for example what does

$$R = R_x \cdot \vec{i} + R_y \cdot \vec{j}$$

mean to you?

6. Jan 14, 2009

Jordash

Yes i'm reading it it talks about getting Vector R is the vector drawn from the tail of the first vector to the tip of the last vector.

7. Jan 14, 2009

NoMoreExams

8. Jan 14, 2009

Jordash

Ok, thank you for the help