04. Interpreting Position vs. Time Graphs

Nd113 C6 L1 09 L Interpreting Position Vs Time Graphs V3

The graph below shows position on the vertical axis (in meters) vs time on the horizontal axis
(in seconds) for a car moving in one dimension in a parking lot. The next few questions refer to this graph.

Which of the following is the best verbal description of the vehicle's motion?
SOLUTION: The car drove forward, stopped, then backed up.

What was the car's average speed from t=0 to t=2?
SOLUTION: 2.5 m/s

What was the car's average speed from t=0 to t=5.5?
SOLUTION: 0 m/s

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