# Homework Help: Determine the total distance you've walked

1. Oct 15, 2007

### Thiendrah

1. The problem statement, all variables and given/known data
A city's streets are laid out with its north-south blocks twice as long as its east-west blocks. You walk 6 blocks east and 4 blocks north.

Part A
Determine the total distance you've walked. Express answers in units of east-west blocks.

Part B

Determine the magnitude of your displacement vector.

2. Relevant equations

I use trig, so no equations (at least not that i know of).

3. The attempt at a solution

You get a 3,4,5 triangle. Tried to get the components. Couldnt do more.

2. Oct 15, 2007

### Hootenanny

Staff Emeritus
Indeed it does, so what do you think the 5 represents?

3. Oct 15, 2007

### Thiendrah

that's the displacement vector for part b.

4. Oct 15, 2007

### Hootenanny

Staff Emeritus
Correct.

So, back to part A; if you walk 6 blocks east and 4 blocks north (bearing in mind 1 north block = 2 east blocks), how many blocks have you walked in total?

5. Oct 15, 2007

### Thiendrah

1n=2e
4n=8e

8e+6e=14e

6. Oct 15, 2007

### Hootenanny

Staff Emeritus
Correct!

Now all you need to do is work out the direction for part B.