4-45. The mine car and its contents have a total mass of 6 Mg and a center of gravity at G. If the coefficient of static friction between the wheels and the tracks is , = 0.4 when the wheels are locked, find the normal force acting on the front wheels at B and the rear wheels at A when the brakes at both A and B are locked. Does the car move? 10 kN 0.9 m 0.15 m -0.6 m -1.5 m- Prob. 4-45

Question
4-45. The mine car and its contents have a total mass of
6 Mg and a center of gravity at G. If the coefficient of static
friction between the wheels and the tracks is , = 0.4 when
the wheels are locked, find the normal force acting on the
front wheels at B and the rear wheels at A when the brakes
at both A and B are locked. Does the car move?
10 kN
0.9 m
0.15 m
-0.6 m
-1.5 m-
Prob. 4-45
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Transcribed Image Text

4-45. The mine car and its contents have a total mass of 6 Mg and a center of gravity at G. If the coefficient of static friction between the wheels and the tracks is , = 0.4 when the wheels are locked, find the normal force acting on the front wheels at B and the rear wheels at A when the brakes at both A and B are locked. Does the car move? 10 kN 0.9 m 0.15 m -0.6 m -1.5 m- Prob. 4-45

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