The two blocks in the figure ( Figure 1 ) are connected by a massless rope that

Question

The two blocks in the figure(Figure 1) are connected by a massless rope that passes over a pulley. The pulley is 14cm in diameter and has a mass of 2.2kg . As the pulley turns, friction at the axle exerts a torque of magnitude 0.48N?m .

If the blocks are released from rest, how long does it take the 4.0 kg block to reach the floor?

MUST SHOW WORK

The two blocks in the figure(Figure 1) are connected by a massless rope that passes over a pulley. The pulley is 14cm in diameter and has a mass of 2.2kg . As the pulley turns, friction at the axle exerts a torque of magnitude 0.48N?m . If the blocks are released from rest, how long does it take the 4.0 kg block to reach the floor?

Explanation / Answer

Given M1 =4 kg

M2 =2 kg

Mass of pulley

M=2.2 kg

D=14 cm

R=D/2 =7cm

By using Newton

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