In the arrangement shown in Fig. 7.251 pulleys are small light and frictionless, threads are inextensible and mass of blocks A, B, and C is m1 = 5 kg, m2 = 4 kg, and m3 = 2.5 kg, respectively. and C is m1 = 5 kg and m3 = 2.5 kg B In the arrangement [...]