The two boxcars A and B have a weight of 17 000 lb and 36 000 lb, respectively. They are freely coasting down the incline when the brakes are applied to all the wheels of car A. The coefficient of kinetic friction between the wheels of A and the tracks is μ = 0.6. The wheels of car B are free to roll. Neglect their mass in the calculation. Suggestion: Solve the problem by representing single resultant normal forces acting on A and B, respectively. (Figure 1)

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The two boxcars A and B have a weight of 17 000 lb and
36 000 lb, respectively. They are freely coasting down the
incline when the brakes are applied to all the wheels of car A.
The coefficient of kinetic friction between the wheels of A and
the tracks is μ = 0.6. The wheels of car B are free to roll.
Neglect their mass in the calculation. Suggestion: Solve the
problem by representing single resultant normal forces acting
on A and B, respectively. (Figure 1)
Figure
Part A
μA
Determine the magnitude of the force in the coupling C between the two cars.
Express your answer to three significant figures and include the appropriate units.
T= Value
4
Submit Request Answer
B
Units
1 of 1
?
Transcribed Image Text:The two boxcars A and B have a weight of 17 000 lb and 36 000 lb, respectively. They are freely coasting down the incline when the brakes are applied to all the wheels of car A. The coefficient of kinetic friction between the wheels of A and the tracks is μ = 0.6. The wheels of car B are free to roll. Neglect their mass in the calculation. Suggestion: Solve the problem by representing single resultant normal forces acting on A and B, respectively. (Figure 1) Figure Part A μA Determine the magnitude of the force in the coupling C between the two cars. Express your answer to three significant figures and include the appropriate units. T= Value 4 Submit Request Answer B Units 1 of 1 ?
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