Pulley A is 2 inches in diameter. Pulley B is 6 inches in diameter. Pulley A and Pulley B are physically attached to each other. What force P must be applied to keep the pulley system from moving in either direction.
What do we know?
1 The system is in Steady State.
2. The torque applied to the system by the 10 lb. weight must be equal and opposite to the torque applied by the force P.
Therefore, we start by finding the torque applied by the 10 lb. weight.
Remember:
1. Show Subscripts.
2. Always show units.
