2.99
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Two blocks are connected by a light string that passes over a frictionless pulley as in Figure P5.38. The system is released from rest while m2 is on the floor and m1 is a distance h above the floor.
(a) Assuming m1 > m2, find an expression for the speed of m1 just as it reaches the floor.
(b) Taking m1 = 6.5 kg, m2 = 4.2 kg, and h = 3.2 m, evaluate your answer to part (a), and
(c) Find the speed of each block when m1 has fallen a distance of 1.6 m. Figure P5.38: