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A force of P = 20 N is applied to the cable, which causes the 175-kg reel to turn
Chapter 18, Problem 18-6(choose chapter or problem)
A force of P = 20 N is applied to the cable, which causes the 175-kg reel to turn without slipping on the two rollers A and B of the dispenser. Determine the angular velocity of the reel after it has made two revolutions starting from rest. Neglect the mass of the cable. Each roller can be considered as an 18-kg cylinder, having a radius of 0.1 m. The radius of gyration of the reel about its center axis is \(k_{G} = 0.42 \ m\).
Questions & Answers
QUESTION:
A force of P = 20 N is applied to the cable, which causes the 175-kg reel to turn without slipping on the two rollers A and B of the dispenser. Determine the angular velocity of the reel after it has made two revolutions starting from rest. Neglect the mass of the cable. Each roller can be considered as an 18-kg cylinder, having a radius of 0.1 m. The radius of gyration of the reel about its center axis is \(k_{G} = 0.42 \ m\).
ANSWER:
Step 1 of 5
Kinetic Energy
Since the system starting from rest, the kinetic energy at position 1 is zero, and the rotational kinetic energy at position 2 of both the reel and the rollers is