Question

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.

Answer 1

Answer:

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