A uniform slender bar AB with a mass of 20 kg and length of 3.6 m leans on a wall as shown. It is attached to a weightless small roller at end A on a smooth horizontal surface. The coefficient kinetic friction between end B and the wall is 0.25. If the bar is released from rest in the position shown when θ is 30°. Then find, determine the normal force at A. determine the normal force at B. determine the frictional force between end B and the wall.
A uniform slender bar AB with a mass of 20 kg and length of 3.6 m leans on a wall as shown. It is attached to a weightless small roller at end A on a smooth horizontal surface. The coefficient kinetic friction between end B and the wall is 0.25. If the bar is released from rest in the position shown when θ is 30°. Then find, determine the normal force at A. determine the normal force at B. determine the frictional force between end B and the wall.
International Edition---engineering Mechanics: Statics, 4th Edition
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Chapter7: Dry Friction
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A uniform slender bar AB with a mass of 20 kg and length of 3.6 m leans on a wall as shown. It is attached to a weightless small roller at end A on a smooth horizontal surface. The coefficient kinetic friction between end B and the wall is 0.25. If the bar is released from rest in the position shown when θ is 30°. Then find,
- determine the normal force at A.
- determine the normal force at B.
- determine the frictional force between end B and the wall.
![A uniform slender bar AB with a mass of 20 kg and length of 3.6 m leans on a wall as
shown. It is attached to a weightless small roller at end A on a smooth horizontal surface.
The coefficient kinetic friction between end B and the wall is 0.25. If the bar is released from
rest in the position shown when e is 30°. Then find,
determine the normal force at A.
determine the normal force at B.
determine the frictional force between end B and the wall.
B
A](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F481e27ba-49f7-47d0-a4ab-1c60553b69a5%2F59757b57-4f2b-427f-9f00-cdecbe97757b%2F7c745uhg_processed.png&w=3840&q=75)
Transcribed Image Text:A uniform slender bar AB with a mass of 20 kg and length of 3.6 m leans on a wall as
shown. It is attached to a weightless small roller at end A on a smooth horizontal surface.
The coefficient kinetic friction between end B and the wall is 0.25. If the bar is released from
rest in the position shown when e is 30°. Then find,
determine the normal force at A.
determine the normal force at B.
determine the frictional force between end B and the wall.
B
A
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