Vectors 3 - Magnitude and Direction

This video will show how to describe a vector in terms of it's magnitude and direction. By the end of this video you should: be able to translate a vector diagram or word problem into a vector equation, using unit vectors, understand that all 2D and 3D vector problems can be reduced to right-angled triangles, define and calculate the vector magnitude from the unit vector equation using the Pythagoras theorem, define and calculate the vector direction using either the sin, cos or tan identities, and unambiguously describe the vector.