# Motion in a plane

## Homework Statement

An airplane maintains a heading due west at an airspeed of 900 km/h. It is flyinh through a hurricane with winds of 300 km/h from northeast.
a) in which direction is the plane moving relative to the ground?

## The Attempt at a Solution

so I have draw the picture of how it looks, and written my givens down, this is confusing me because it is no longer a right angle triangle, what do I have to do?[/B]

SteamKing
Staff Emeritus
Homework Helper

## Homework Statement

An airplane maintains a heading due west at an airspeed of 900 km/h. It is flyinh through a hurricane with winds of 300 km/h from northeast.
a) in which direction is the plane moving relative to the ground?

## The Attempt at a Solution

so I have draw the picture of how it looks, and written my givens down, this is confusing me because it is no longer a right angle triangle, what do I have to do?[/B]
Use trigonometry for non-right triangles.

Do you know the Sine Rule? The Cosine Rule?

http://www.cimt.plymouth.ac.uk/projects/mepres/step-up/sect4/index.htm

Scroll down a bit from the top.

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