(adsbygoogle = window.adsbygoogle || []).push({}); [SOLVED] Displacement of a vector (Really simple)

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

A ship sets out to sail to a point 106 km due north. An unexpected storm blows the ship to a point 128 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive angle) must it now sail to reach its original destination?

2. Relevant equations

3. The attempt at a solution

I have (a) = 166.1926593 which is correct and to find (b) I'm just using tan^(-1)(106/128) = 39.6290053 but this isn't correct? Am I supposed to be taking the complement of this angle?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Displacement of a vector (Really simple)

**Physics Forums | Science Articles, Homework Help, Discussion**