Place the basket on the track and attach the hanging mass using the thread basket. Lead thread through pulley This post is long enough so that the shopping cart needs hits the stop block before hanging to the ground mass.
Place the basket on the track and attach a basket hanging by a thread mass. Bring the thread through the pulley This must be long enough to stop the trolley hit the block before the mass that hung to the floor.
Put the basket on the track and attach the hanging basket mass using thread, the thread through the pulley. This post must be long enough to allow wheelchair hits the stop block before hanging mass to the ground.