Q.3) A 200-kg load is supported by the rope and pulley system shown. Pulley A has a mass of 4 kg and the mass of the rope is negligible. Assume the pulley is frictionless and treat pulley A as a particle. a) If ß = 10°, determine the magnitude of the applied force P and its direction (a) in order to keep the system in static equilibrium assuming 0° ≤ a ≤ 90°. b) Given 0° ≤ a ≤ 90°, find the range of ß angles for which the system can be in static equilibrium (write an inequality for the range assuming ß cannot exceed 90°). P B

Q.3) A 200-kg load is supported by the rope and pulley system shown. Pulley A has a mass of 4 kg and the mass of the rope is negligible. Assume the pulley is frictionless and treat pulley A as a particle. a) If ß = 10°, determine the magnitude of the applied force P and its direction (a) in order to keep the system in static equilibrium assuming 0° ≤ a ≤ 90°. b) Given 0° ≤ a ≤ 90°, find the range of ß angles for which the system can be in static equilibrium (write an inequality for the range assuming ß cannot exceed 90°). P B

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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