The photogates are attached under the track on the 'u' channel with the clamp. The photogates should be placed at 60 cm and 160 cm on the track. The height of the set so that when the cart move through the gate the gate is blocked. This will vary depending on if a flag is palced on the cart.

The photogates are connected to the Pasco 750 interface. Photogate 1 is connected to Digital Channel 1. Photogate 2 is connected to Digital Channel 2.

The air blower hose should be inserted into the blower and the track. The typical blower settings is about 3.