Pre-Lab (P221) \"MAY THE FORCE BE WITH YOU\" E In this lab we seek to give you practice with identifying forces acting on an object, and how some of those forces and the motion (if any) of the object may depend on forces over which you may have direct control. In this prelab, we give you practice constructing and understanding free body diagrams. Read the introduction and theory sections of the experiment's description (the "write-up\"). Pay close attention to the procedure for analyzing forces using Newton's second law. Then complete the following exercises and submit this form to Canvas by the due date. You should be able to print this, write your answers in the open spaces and scan the pages in for submission. Please write clearly and use a scan feature on your phone or a copier, rather than just taking pictures, to make sure the images are easy to read. BLOC K . With nothing attached to the block, and following the procedure for analyzing forces in the experimental write-up, draw a free body diagram of the forces acting on the aluminum block. Write the second law equation for the forces acting on the block below: Normal Forces and Reaction Forces A large aluminum block is placed on a balance. Looking at the free body diagram, identify the normal force acting on the aluminum block. Also identify the Newton's-third-law complement to the normal force acting on the block (i.e. the "reaction force"). Perpendicular and Parallel Forces. A 500 +/~ 1 g aluminum block sits in the middle of a balance. Strings with small mass hangers are attached as shown in the diagram. The mass hanger on the right has a total mass of 100 +/ 1 g. The hanger on the left has a mass of 50 +/- 0.5 g. Assume that the balance reads 400.1 +/~ 0.1g. As before, follow the procedure in the lab manual to obtain a free body diagram and ultimately the second law equations for the aluminum block. It will be easier if you separate the x and y forces and deal with each direction individually. When you have completed writing the second law equations above, answer the following questions: 2. What is the magnitude of the frictional force acting between the aluminum block and the balance? (You should be able to determine this from your free body diagrams.) 3. Calculate the numeric values for the forces given. Using the second law equation you wrote for the vertical forces, verify if the forces sum to zero within experimental error. If not within the expected experimental error, are the values obtained out of reason considering the apparatus and experimental arrangement? 4. You add 50 g of mass to the @ mass hanger (for a total mass of 100 g), what is the frictional force between the aluminum block and the balance? 5. Leaving the left mass hanger with a total of 100 g mass, you add 100 g of mass to the right mass hanger (for a total mass of 200 g). What is the frictional force between the aluminum block and the balance