Pre Lab Questions Use the free body diagram of the pulley Figure 4 to answer the Pre Lab Questions 1 Draw a free body diagram for M1 T1 a1 M1 M1g 2 Draw a free body diagram for M2 T1 a2 M2 M2g 3 Apply Newton s 2nd Law to write the equations for M1 and M2 You should get two equations with Tension in the string weight for each mass and accelerations for each mass a1 and a2 Figure 4 Free Body Diagram two objects with mass hanging on a pulley by string T M1 g M1 a1 T M1 g a1 M2 g T M2 a2 T M2 g a2 4 This results in two equations with three unknowns A third equation is required to solve the system What is the third equation Hint What is the relationship between a1 and a2 a1 a2 M2 g M1 g a M2 a g M2 M1 a M1 M2 a1 a2 a M2 M1 g M1 M2 2014 eScience Labs LLC All Rights Reserved 2014 eScience Labs LLC All Rights Reserved
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