Attach the Motion Sensor to the track as in the picture above.
Make sure the hook on the Force Sensor is not too tightly screwed into the Force Sensor.
Make sure the switch at the top of the Motion Sensor is at the cart icon.
With nothing in contact with the hook of the Force Sensor, press the Zero button on the Force Sensor.
SOFTWARE SETUP:
The screen above should be visible on the Xplorer GLX.
Change the vertical axis to "Force (Inverted):" Press the Check Button twice. Use the Arrow Buttons and the Check Button to select "Force (Inverted)."
Change the horizontal axis to "Acceleration:" Press the Check Button once. Press the Down Arrow button until "Time" is highlighted. Press the check button again. Use the Arrow Buttons and Check Button to make the horizontal access "Acceleration" as in the picture above.
Deselect Connected Lines: Press the F4 Button. Using the Arrow and Check Buttons deselect the Connected Lines feature.
OPTIONAL DOWNLOAD for "2nd Law with the Xplorer GLX":