# Finding the y-component from Vectorys

1. Jan 14, 2009

### Jordash

1. The problem statement, all variables and given/known data
Suppose and and . What is the y-component of the sum ?

2. Relevant equations

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

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