5-62. Two blocks are connected by a string passing over a pulley (Figure 4-22). Neglect friction and the rotation of the pulley. If the masses are m1 = 3.7 kg and m2 = 2.7 kg, determine the magnitudes of:
(a) the acceleration of the blocks
(b) the tension in the string.
[Ans. (a) 5.7 m/s2 (b) 15 N]

a1 = a2 =a

The force that accelerates m1 is:

(C) T - m1g

(D)m1g - T