Figure 4-49 shows a block (mass mA) on a smooth horizontal surface, connected by a thin cord that passes over a pulley to a second block (mB), which hangs vertically.
(a) Draw a free-body diagram for each block showing the force of gravity on each, the force (tension) exerted by the cord, any normal force.
(b) Apply Newton€™s second lay to find formulas for the acceleration of the system and for the tension in the cord, Ignore friction and the masses of the pulley and cord.