Figure 1: Materials used for lab setup. Weights and weight hangar (left), cart to be placed on track (middle), and digital compass/protractor (right). Not shown is the pulley wheel to be attached to top of track.
Figure 2: To set up experiment, have one person use digital protractor (left) to determine where track should be, and have another person raise or lower track at the top. Then, make sure that the string close to the cart and close to the pulley wheel are straight (middle and right).
