1F30.10 - Persistence of Motion
To demonstrate Newton's First Law, the law of inertia, using an air track and cart
Connect air supply to 4' air track. Put on/off switch on air supply for easy use. Level air track. Place single cart on track.
Turn on air supply and allow it to ramp up to full speed. Place cart on air track. Air provides cushion between cart and track to eliminate friction. Give cart an initial applied force. Watch cart bounce back and forth along the track. Only energy loss when cart collides with either end of the track.