annotate the photo) and carefully label it with all quantities that are relevant for your mathematical method. Determine the uncertainty in the start position for the cart and think about how to take it into account when placing it. Once you've determined where to place the cart... CHECKPOINT: Discuss your mathematical method with your TA. They will then give you the cart. If you miss any of the targets carefully examine your method and calculations to figure out where the issue is, then CHECKPOINT: Discuss your improvements with your TA. They will then give you another chance with the cart. Repeat this process until you've worked out all the issues and have hit all three targets. Continue