The two blocks in Figure 1 are connected by a massless rope that passes over a pulley. The pulley is 12 cm in diameter and has a mass of 2.0 kg. As the pulley turns, friction at the axle exerts a torque of magnitude 0.30 Nm. If the blocks are released from rest, how long does it take the 4.0 kg block to reach the floor? O 1.70 s 1.11 s 3.72 s 1.35 s 2.45 s

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