A rope attached to a 35-lb crate passes around two fixed pegs as shown in Fig. to a wall by a second cord. The coefficient of friction be- tween the two crates is 0.25; between the crate and the floor, 0.25; and between the rope and the pegs, 0.20. Determine the minimum force Pmin that must be used to cause mo- The 45-lb crate is attached tion. P 45 lb 35 lb

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A rope attached to a 35-lb crate passes around two
fixed pegs as shown in Fig.
to a wall by a second cord. The coefficient of friction be-
tween the two crates is 0.25; between the crate and the floor,
0.25; and between the rope and the pegs, 0.20. Determine
the minimum force Pmin that must be used to cause mo-
The 45-lb crate is attached
tion.
P
45 lb
35 lb
Transcribed Image Text:A rope attached to a 35-lb crate passes around two fixed pegs as shown in Fig. to a wall by a second cord. The coefficient of friction be- tween the two crates is 0.25; between the crate and the floor, 0.25; and between the rope and the pegs, 0.20. Determine the minimum force Pmin that must be used to cause mo- The 45-lb crate is attached tion. P 45 lb 35 lb
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