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 *m*_{1}
= 3.7 kg and *m*_{2} = 2.7 kg, determine the magnitudes
of:

(a)
the acceleration of the blocks

(b)
the tension in the string.

[Ans.
(a) 5.7 m/s^{2} (b) 15 N]

Correct!

The accelerations are equal: *a*_{1}
= *a*_{2} = *a*

The force that accelerates *m*_{2}
is:

(A) T (the tension in the string)

(B) *m*_{2}*g*
(the weight of *m*_{2})