Two-Body Pulley Problems Now we have two equations of motion: T = 3 a + 6 new equation #1 T = a equation #2 (no change) Solve by sub #1 into #2 3 a + 6 = a 4.5 a = 9 a = 2.0 m/s 2 a A = 2.0 m/s 2 [ right ] a B = 2.0 m/s 2 [ down ] Back-sub in equation #1 to get T T = 3 ( 2.0) + 6 = .
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