The mine car and its contents have a total mass of 6.6 Mg and a center of gravity at G. The coefficient of static friction between the wheels and the tracks is μg = 0.4 when the wheels are locked. The brakes at both A and B are locked. (Figure 1) Part A Find the normal force acting on the front wheels at B. Express your answer to three significant figures and include the appropriate units. Figure 10 kN 0.9 m C .G -0.6 m- -1.5 m- A0.15 m 1 of 1 NB = Value ? Units Submit Previous Answers Request Answer × Incorrect; Try Again Part B Find the normal force acting on the rear wheels at A. Express your answer to three significant figures and include the appropriate units. ? μA NA = Value Units Units input for part B Submit Previous Answers Request Answer × Incorrect; Try Again Part C Complete previous part(s) Provide Feedback

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 7.75P: The single-plate clutch transmits the torque C from the input shaft on the left to the output shaft...
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The mine car and its contents have a total mass of 6.6 Mg and a center of gravity
at G. The coefficient of static friction between the wheels and the tracks is μg = 0.4
when the wheels are locked. The brakes at both A and B are locked. (Figure 1)
Part A
Find the normal force acting on the front wheels at B.
Express your answer to three significant figures and include the appropriate units.
Figure
10 kN
0.9 m
C
.G
-0.6 m-
-1.5 m-
A0.15 m
1 of 1
NB =
Value
?
Units
Submit
Previous Answers Request Answer
× Incorrect; Try Again
Part B
Find the normal force acting on the rear wheels at A.
Express your answer to three significant figures and include the appropriate units.
?
μA
NA =
Value
Units
Units input for part B
Submit
Previous Answers Request Answer
× Incorrect; Try Again
Part C Complete previous part(s)
Provide Feedback
Transcribed Image Text:The mine car and its contents have a total mass of 6.6 Mg and a center of gravity at G. The coefficient of static friction between the wheels and the tracks is μg = 0.4 when the wheels are locked. The brakes at both A and B are locked. (Figure 1) Part A Find the normal force acting on the front wheels at B. Express your answer to three significant figures and include the appropriate units. Figure 10 kN 0.9 m C .G -0.6 m- -1.5 m- A0.15 m 1 of 1 NB = Value ? Units Submit Previous Answers Request Answer × Incorrect; Try Again Part B Find the normal force acting on the rear wheels at A. Express your answer to three significant figures and include the appropriate units. ? μA NA = Value Units Units input for part B Submit Previous Answers Request Answer × Incorrect; Try Again Part C Complete previous part(s) Provide Feedback
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