A 20.0-m-long uniform beam weighing 550 N rests on walls A
Chapter 9, Problem 68(choose chapter or problem)
A 20.0-m-long uniform beam weighing 550 N rests on walls A and B. as shown in Fig. 9-80.(a)Find the maximum weight of a person who can walk to the extreme end D without tipping the beam. Find the forces that the walls A and B exert on the beam w'hen the person is standing: (b) at D: (c) at a point 2.0 m to the right of B: (<7) 2.0m to the right of A.
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