I- Purpose: To determine the relationship between the mass of an object and the acceleration it undergoes when an unbalanced net force acts on it II- Materials: a. Laboratory cart b. Time meter c. Metric mass set (50g, 100g and 200g) d. Pulley e. Large loops f Washers g. Sturdy piece of yarn III- Procedure: a. Assemble and balance the equipment b. Keeping the throttle force constant, vary the masses on the carriage. c. Determine the system acceleration. d. Repeat steps b and c at least 4 more times. e. Prepare an Acceleration vs. Mass graph f. Prepare an Acceleration vs. Reciprocal Mass graph. Determine the slope of this graph. g. Write in the form of an equation, the relationship shown in the graph. IV- Questions to guide the discussion: a. What force accelerates the system? b. How can the mass of the system vary without varying the throttle force? C. What is the form of the Acceleration versus Mass graph? d. What is the shape of the Acceleration versus 1/mass graph? e. What dimensions is the slope of the graph? f. What does the slope of the Acceleration versus 1/mass graph represent?