Two blocks are connected by a light string passing over an ideal pulley. The block with mass m1 = 20.0 kg slides on a frictionless horizontal surface, while the block with mass m2 = 1.0 kg hangs vertically. The radius of the pulley is 6.0 cm.
(a) Assuming that the pulley rotates such that the string doesn’t slip, find the angular acceleration of the pulley.
(b) If the block on the table is released from rest, calculate how many revolutions the pulley has made 2.0 s later, assuming the other block hasn’t reached the floor.
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