# Magnitude and direction

1. Sep 20, 2007

### kraaaaamos

Displacement: Magnitude And Direction (urgent)

1. The problem statement, all variables and given/known data

Jim walks 100m due south, 60m due east, and then 20m due north. What is his net
displacement (both magnitude and direction)?

2. Relevant equations

I know how to find the net displacement by the magnitude of the distance...
using the d = sq. rt ( (x2-x1)^2 + (y2-y1)^2 )

but i dont know how to express the direction?

3. The attempt at a solution

Last edited: Sep 20, 2007
2. Sep 20, 2007

### Mindscrape

So he goes 80m S and 60m E. If it were a triangle with 80m is a down pointing leg and 60 as a right pointing leg, how would you find the direction the hypotenus goes in?

3. Sep 21, 2007

### chaoseverlasting

Think vectors.

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