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.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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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.
60 kg
45 kg
Transcribed Image Text: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. 60 kg 45 kg
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