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Home Q & A Board Science-Related Homework Help Physics
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BladeLotus BladeLotus
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5 years ago

Figure 5.20




Blocks A and B of masses 10 kg and 7 kg, respectively, are connected by a rope, which passes over a light frictionless pulley, as shown. The horizontal surface is rough. The coefficients of static and kinetic friction are 0.40 and 0.20, respectively. External forces P and Q act on block B, as shown. In Figure 5.20, force P equals 28 N. The maximum value of force Q, for which the system remains at rest is closest to:

• 120 N

• 140 N

• 130 N

• 110 N

• 98 N
Textbook 
College Physics

College Physics


Edition: 10th
Authors:
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#1
5 years ago
140 N
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