Solution:
FreeBody Diagrams
a) Draw and label the freebody diagram for each mass. (3 marks)
10 kg:  25 kg:  20 kg: 
b) Write the equation described by each vector diagram above. (3 marks)
10 kg:  25 kg:  20 kg: 
F_{NET = }T_{1}  F_{F } F_{g1}_{ //} = 10a 
F_{NET} = T_{2}  T_{1 }= 25a 
F_{NET} = F_{g3//}  T_{2}  F_{F3} = 20a 
c) What is the acceleration of the system? (6 marks)

d) What is the tension in each rope, T_{1} and T_{2}. (3 marks)
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