The 50-kg cylinder has an angular velocity of 30 rad/s when it is brought into contact with the horizontal surface at C. If the coefficient of friction is c = 0.2, determine how long it takes for the cylinder to stop spinning. What force is developed at the pin A during this time? The axis of the cylinder is connected to two symmetrical links. (Only AB is shown.) For the computation, neglect the weight of the links.

The 50-kg cylinder has an angular velocity of 30 rad/s when it is brou

1.	The 50-kg cylinder has an angular velocity of 30 rad/s when it is brought into contact with the horizontal surface at C. If the coefficient of friction is c = 0.2, determine how long it takes for the cylinder to stop spinning. What force is developed at the pin A during this time? The axis of the cylinder is connected to two symmetrical links. (Only AB is shown.) For the computation, neglect the weight of the links.
A.	t = 1.529 s, A = 0
B.	t = 3.06 s, A = 0
C.	t = 1.529 s, A = 49.1 N
D.	t = 3.06 s, A = 49.1 N
Answer» D. t = 3.06 s, A = 49.1 N

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