The purpose of this pre-lab is to continue thinking about Force, specically in the context of motion where a force imbalance creates an acceleration that can be measured by an object's increasing speed. There is only one activity to this lab, and that is to create a scientic question and perform 2-3 trials where you set up your experiment and analysis in such a way to provide evidence for an answer to your scientic question. In this lab, your scientic question MUST be, in some way connected to FORCE, either the net force on an object or a component force (like tension) on an object. Aspects of your question can connect to other physical parameters like position, velocity, or acceleration, as long as your nal results report back on an understanding about net andfor component forces (like tension) in your system. In this lab, you will use the cart on the air-track setup to take BOTH movie and accelerometer measurements of your cart as it accelerates due to an external force in a pulley system. See Figure 1 below for a schematic of the setup. It is very similar to some of your Mastering Physics Homework Problems: two masses. connected by a pulley. A Air cart Fhanrl Figure 1: Schematic diagram of the initial air cart and pulley setup. with the red arrow showing the force that a human hand is exerting on the air cart to hold it still at the start of the trial. There must be an external force on the air cart to hold it still, when the air track is on and there is negligible friction. Pre-Lab Slide 1: Free-Body Diagram of Experimental Setup at Rest [no friction). a. Draw the free body force diagram of the dangling mass (m;), when you are holding the system at rest. Be sure to label your coordinate system, to set up Fnet = ma in the next step. b. Draw the free body force diagram of the air cart (m), in this same conguration where you are holding the system at rest. Again label coordinate axes. 0. Write out on paper (and take a picture). or type out (if it is easier), the three equations of Newton's Second Law (ma = Fnet = all the component forces summed with proper signs for directions). Be clear about which equation corresponds to which object, and which direction. You need one equation for each dimension of each object