1. Connect a USB Link or Xplorer to the USB port of the computer.
   
   
2. Plug the Motion Sensor into either the USB Link or Xplorer.
   
   
3. Place the dynamics track on a level horizontal surface and place the car in the middle of the track.
   
   
4. Attach the Force Accessory Bracket to one end of the track making certain that the metal flap aligns with the plunger on the car (see photo below).
   
   
   
   
5. Clip the Motion Sensor on the other end of the track and put the switch on the cart setting.
   
   
   
6. Arrange the cord from the Motion Sensor such that it does not interfere with the motion of the car.
   
   
7. Place the cork-bottomed tray in the mass tray of the car. Push in the plunger to the second setting and move the car so that the plunger is resting against the metal flap on the Force Accessory Bracket (see photo below).
   
   
   

To download the Sliding Friction and Working DataStudio file, click on a Windows (Zip file) or Macintosh (Stuffit file).

You are now ready to begin collecting data.