The system shown below consists of a 1 kg block B on a 30° smooth slope attached to a cable which is wrapped around a 1 kg drum. The system is originally at rest. If a 100 N. m couple is applied to...

Extracted text: The system shown below consists of a 1 kg block B on a 30° smooth slope attached to a cable which is wrapped around a 1 kg drum. The system is originally at rest. If a 100 N. m couple is applied to the drum A, determine the speed vB2 of the block after it has moved 6 m up to the slope. V82 = ? M=100 N.m 6m B 1 kg drum r=1 m 1 kg block System starts from rest. V81 = 0 Find ve when block B has moved 30 6m up the smooth slope.