A 60 Kg crate is resting on top of a 45 Kg crate as shown in figure below. The top crate is attached to a wall by a cord, and a rope attached to the bottom crate passes around two fixed pegs. The coefficient of friction between the two crates is 0.4; between the crate and the floor is 0.5; and between the rope and the pegs is 0.3. Determine the minimum force Pmin needed to cause move the bottom crate.
A 60 Kg crate is resting on top of a 45 Kg crate as shown in figure below. The top crate is attached to a wall by a cord, and a rope attached to the bottom crate passes around two fixed pegs. The coefficient of friction between the two crates is 0.4; between the crate and the floor is 0.5; and between the rope and the pegs is 0.3. Determine the minimum force Pmin needed to cause move the bottom crate.
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 7.3P: Two identical chairs, each weighing 14 lb, are stacked as shown. The center of gravity of each chair...
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