After completing today's reading, exercises, and the associated homework you should be able to:
Express a 3-D vector in Cartesian coordinates..
Find the direction cosines of a 3-D vector.
Find a position vector in 3-D space based on coordinates falling on a line.
Find a unit vector from a position vector.
Find a force vector from knowledge of its magnitude and a position vector with which it shares a common direction.
Define and find the dot product (or scalar product) of two vectors.
Give the interpretation and one major utility of the dot product.
Note: Any term in bold is a key vocabulary term that you should be able to define, regardless of whether or not that is the specific learning objective.