David M. Axelrod is an American political operative and political analyst, best known as the Chief Strategist for Barack Obama's presidential campaigns. After Obama's election, Axelrod was appointed as Senior Advisor to the President. Axelrod left the White House position in early 2011 and became the Senior Strategist for Obama's successful re-election campaign in 2012. He currently serves as the director of the non-partisan Institute of Politics at the University of Chicago and is a Senior Poli
Acceleration The slope of the line of a speed-versus-time graph will give you acceleration.
Instantaneous and Average Velocity. The instantaneous velocity of an object at a particular time is equal to the slope of its position vs. time graph at that time. On the other hand, the average velocity between two times is equal to the slope of the line joining the two points on the position vs. time graph. Run the applet to the right to make sure that you understand these two concepts -- both their similarities and differences.