chap12sec2 - 12.2 Vectors

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
12.2 Vectors Scalars are quantities that only have a magnitude like mass, speed, and electric field strength. Many times it is often useful to have a   quantity that has not only a magnitude but also a direction; such a quantity is called a  vector . Examples of quantities represented  by vectors include velocity, acceleration, and virtually any type of force (frictional, gravitational, electric, magnetic, etc.). Note that   all of these quantities not only have a magnitude (such as speed – the magnitude of the velocity vector) but also occur or act in a given  direction. It is convenient to represent both quantities by just one symbol, the vector. Graphically, a vector is represented by an arrow, defining  the direction, and the length of the arrow defining the vector's magnitude.  two-dimensional   vector  is an ordered pair  1 2 , a a = a  of real numbers.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/20/2012 for the course MATH 2057 taught by Professor Estrada during the Fall '08 term at LSU.

Page1 / 2

chap12sec2 - 12.2 Vectors

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online