Demonstration Description: Purpose of the Experiment:
In this experiment you will study the motion of a cart on a track in response to an applied
force. The experiment is intended to help you investigate the following ideas, many of
which you may already know.
Velocity is the rate of change of an object's position with respect to time, and
acceleration is the rate of change of an object's velocity with respect to time.
Compute the instantaneous and average velocity from (i) a position vs. time graph of
an object's motion and (ii) from a mathematical function describing the position of
an object as a function of time.
Understand that an object's acceleration may be either constant or may change with
time or position.
Determine experimentally whether an object moving in one dimension has constant
or variable acceleration.
Describe mathematically the motion of objects with either constant or variable
acceleration; in particular see if you can verify F = ma.
Learn how to represent the motion of an object using words, graphs, numerical tables,
and equations. Learn to move comfortably among the different ways to represent