1. Aim: How do we interpret velocity-time graphs?

2. Constant Velocity Vehicle
Once again, consider the following vehicle. What will the velocity-time graph look like for this moving vehicle?

3. Velocity-Time Graph showing constant velocity
The velocity is constant. Therefore, it does not change.

4. Accelerating Vehicle
Consider our accelerating vehicle again. What would its velocity-time graph look like?

5. Velocity-Time Graph for Accelerating Vehicle
The object is accelerating. The velocity increases at a constant rate.

6. Matching d-t graphs with their corresponding v-t graphs= =

7. Physical Meaning of Slope for a Velocity-Time Graph
We know that slope = rise/run. For a v-t graph, this means slope = ∆v/∆t=a. The slope of a velocity-time graph is the acceleration.

8. Describe the motion depicted in each of the following v-t graphs:

9. Describe the motion depicted in each of the following v-t graphs:

10. Describe the motion depicted in each of the following v-t graphs:

11. Interpreting Velocity-Time Graphs
What is the acceleration
of the rocket from:
t= 0s to t= 1s
t=1s to t=4s
t=4s to t= 12s