Two masses MA = 4.5 kg and MB = 9.3 kg are connected by a single massless rope as shown. The pully is frictionless and massless. Ignore air drag and use g=9.81 Use the GOAL method (shown below) to solve this problem showing your work for each section. Label sections G, O, A, and L. A free-body diagram is required in the organize (O) section. m/s2. a) Draw a free body diagram Find the acceleration of block B when there is no friction between the masses and the surface. b) Find the acceleration of block B when there is kinetic friction between the surfaces with ?k=0.2

a) Find the acceleration of block B when there is no friction between the masses and the surface. b) Find the acceleration of block B when there is kinetic friction between the surfaces with HA=0.27 A 60 B Use the GOAL method (see lecture slides and pdf on Canvas) to solve this problem showing your work for each section. Label sections G, O, A, and L (G) Gather information: What is known? What are you looking for? Predict a reasonable answer with units. (Consider limiting cases.) (O) Organize your approach: Draw a diagram(s) labeled with variables from G step. Classify the problem according to the general physics principle(s) used. Describe how you will use the general principle(s) to solve the problem. [O) Analyze the problem: Identify and show general physics equations, Add constraints that specify the conditions that restrict the problem. Solve for the unknown variable in terms of the known variables. Substitute known values, calculate answer, round appropriately- (L) Learn from your efforts: Check your answer. Does the answer agree with the prediction in G step? Correct units? Does the algebraic result make sense for limiting cases? If the problem were modified, how would the result change? Why was this particular problem assigned