1. Describe how you will measure the mass of your cart. (hint: how did you measure the mass of objects in previous SAL labs?) Once you have experimentally measured the mass of the cart, explain how you will use this measurement with your raw data, to obtain your analyzed data. For example, what type of energy can you quantify when you know the mass of the cart? What raw data will you use with the mass to obtain values for this energy. (this part is a review, but important for you to restate the goal in your own words)