Problem 8.3 The mine car and its contents have a total mass of 5.1 Mg and a center of gravity at G. The coefficient of static friction between the wheels and the tracks is μ = 0.4 when the wheels are locked. The brakes at both A and B are locked. 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. 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. Part C Does the car move? Explain your reasoning. 10 kN 700 0.9 m -0.6 m- 5 of 10 -1.5 m 0.1

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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Problem 8.3
The mine car and its contents have a total mass of 5.1 Mg and a center of gravity at G. The coefficient of static friction between the wheels and the tracks is μ = 0.4 when the
wheels are locked. The brakes at both A and B are locked.
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.
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.
Part C
Does the car move? Explain your reasoning.
10 kN
0.9 m
B
-0.6 m-
.G
5 of 10
-1.5 m-
0.15 m
Transcribed Image Text:Problem 8.3 The mine car and its contents have a total mass of 5.1 Mg and a center of gravity at G. The coefficient of static friction between the wheels and the tracks is μ = 0.4 when the wheels are locked. The brakes at both A and B are locked. 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. 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. Part C Does the car move? Explain your reasoning. 10 kN 0.9 m B -0.6 m- .G 5 of 10 -1.5 m- 0.15 m
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