In the Atwood machine shown in Figure 5.14a, m1 = 2.00 kg and m2 = 7.00 kg. The masses of the pulley and string are negligible by comparison. The pulley turns without friction and the string does not stretch. The lighter object is released with a sharp push that sets it into motion at vi = 2.40 m/s downward.
(a) How far will m1 descend below its initial level?
(b) Find the velocity of m1 after 1.80 seconds.