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Problem 3

1) Three blocks A, B and C are connected by two ropes with tensions T, and T2. Blocks A and B
weigh 20 N each and the coefficient of kinetic friction between each block and the surface is
0.40. Block C descends with a constant velocity. (All pulleys are frictionless)
a) Draw free body diagrams for all blocks.
b) Find the tensions T, and T2 in the ropes.
c) Find the mass of block C.

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