The Pasco Motion Sensor can be mounted to a Vernier Dynamics Track in the same way as a Vernier Motion Detector. In the below picture, you can see how to use the Vernier track and Vernier Motion Detector Bracket (both included in the Vernier Dynamics System (VDS, discontinued)) to mount a Pasco sensor onto a Vernier track.

This allows you to use more of the track length for an experiment than mounting the sensor right at the end of the track. Note, that since this sensor sits lower that it can not be a full 15 cm away from the end of the track.