connected to the USE. The next thing that needed to be done was. mount the photogate on the pulley mounting rod and tum the photogate head sideways so that we will be able to drop a picket fence vertically from above the photogate. In order to make sure the picket fence doesn't break a picket fence landing pad was place below placed below the photogate. After everything is set up to how it is supposed to be we can click the record button to begin the photogate timer. Then we are able to drop the picket fence through the gate and once the picket fence passes completely though the photogate, we can stop the recording. The last step is to record the data on the chart. This chart should include the block times. velocities. and accelerations