Finding Displacement: Sketch & Solve w/ Cosine Law

[Jeremy Mercier]

Homework Statement

A man walks 120m [S 23 E] Then turns and walks 60m [S 10 N] draw a careful sketch of this situation and then solve for the displacement, you do not have to solve for the direction

2. Relevant equation:
Cosine law

The Attempt at a Solution

Solution attempt is attached as a photo, I think I might have done it right but I would like someone to check it over

 

[jbriggs444]

Homework Statement

A man walks 120m [S 23 E] Then turns and walks 60m [S 10 N] solve for the displacement

You have transcribed the problem poorly. However, the result looks good to me.