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Three blocks of masses m1 = 1 kg, m2 = 2 kg, and m3 = 4 kg, are connected by massless strings, one of which passes over a frictionless pulley of negligible mass, as shown in the Figure below. Calculate each of the following. (a) a, the acceleration of the system. Answer: 1.4 m/sec2. (b) T1, the tension in the string connected to m1. Answer: 11.2 N. (c) T2, the tension in the string connected to m3. Answer: 33.6 N.

Three blocks of masses m1 = 1 kg, m2 = 2 kg, and m3 = 4 kg, are connected by massless strings, one of which passes over a frictionless pulley of negligible mass, as shown in the Figure below. Calculate each of the following. (a) a, the acceleration of the system. Answer: 1.4 m/sec2. (b) T1, the tension in the string connected to m1. Answer: 11.2 N. (c) T2, the tension in the string connected to m3. Answer: 33.6 N.

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Three blocks of masses m 1 = 1 k g , m 2 = 2 k g , and m 3 = 4 k g , are connected by massless strings, one of which passes over a frictionless pulley of negligible mass, as shown in the Figure below. Calculate each of the following. (a) a , the acceleration of the system. Answer: 1.4 m / s e c 2 . (b) T 1 , the tension in the string connected to m 1 . Answer: 11.2 N . (c) T 2 , the tension in the string connected to m 3 . Answer: 33.6 N .

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