The slope of a positiontime graph
is the velocity of an object.

Determine the velocity of the object in the following graph.

Determine the velocity of the object in the following graph.

Determine the velocity of the object in the following graph.

Determine the velocity of the object in the following graph.
The area under the curve
of a velocitytime graph is the displacement,
or change in position.
Often, a velocitytime graph is horizontal,
and the area is just the area
of a rectangle, but we still refer to this
as the "area under the curve>

Determine the displacement of the object in the following graph.

Determine the displacement of the object in the following graph.

The instantaneous velocity
of an object is its velocity at one instant in time.

The slope of a positiontime
at some point in time is the
called teh instantaneous velocity
at that point in time.

The average velocity represents the velocity
averaged over a whole trip.

The average velocity is calculated using the formula
total displacement / total time.

 Determine the instantaneous velocity of the object from 0 s to 20 s.
 Determine the instantaneous velocity of the object from 20 s to 100 s.
 Determine the average velocity of the object from 0 to 100 s. Remember that average velocity = total displacement / total time.

 Determine the instantaneous velocity of the object from 0 s to 100 s.
 Determine the instantaneous velocity of the object from 100 s to 200 s.
 Determine the average velocity of the object from 0 to 200 s.

The displacement of an object is its change in position
over some period of time.

The total displacement is the sum of many smaller displacements.

 Determine the displacement of the object from 0 s to 20 s.
 Determine the displacement of the object from 20 s to 60 s.
 Determine the total displacement of the object.

 Determine the displacement of the object from 0 s to 40 s.
 Determine the displacement of the object from 40 s to 100 s.
 Determine the total displacement of the object.