Velocity vs. Time

Be sure to wait until the applet has finished loading before you begin.

Procedure:

Click on one of the graph choices. You will see an animation of a red car moving to the right, hitting a wall and then moving backward to the left. Also shown is one of four possible graphs.

Question

Which graph correctly describes the car's velocity as a function of time during the animation? Give reasons for your answer. (You may use the control buttons to pause or step the motion of the car. Click and hold the cursor to determine the position in metres of the front of the car. Time is given in seconds.)