There is a heavily loaded cart on wheels sitting on a track. Attached to the left side of the cart is a thick 8 foot rope with 4 large knots spaced at equal intervals. Standing near this knotted rope is a group of 4 people. On the opposite side of the cart, a similar rope with 4 large knots is attached to the right side of the cart. There is another group of 4 people - they are standing near this other rope. The center position of the cart has been marked on the ground.
A thick, 8 foot rope is attached to the left side of the cart. The rope has 4 positions marked at equal intervals: 8 feet, 6feet, 4 feet, and 2 feet. A group of four people standing near this rope.
A thick, 8 foot rope is attached to the right side of the cart. The rope has 4 positions marked at equal intervals: 8 feet, 6feet, 4 feet, and 2 feet. A group of four people standing near this rope.