Question: The system in Figure is released from rest. The 30-kg block is 2 m above the ledge. The pulley is a uniform disk with a

The system in Figure is released from rest. The 30-kg block is 2 m above the ledge. The pulley is a uniform disk with a radius of 10 cm and mass of 5 kg. Find

(a) The speed of the 30-kg block just before it hits the ledge,

(b) The angular speed of the pulley at that time,

(d) The time it takes for the 30-kg block to reach the ledge. Assume that the string does not slip on the pulley.

m = 5 kg r = 10 cm 30kg 2m 20kg

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