Concept explainers
Part (a)
The maximum weight of a person who can walk to the extreme end D without tipping the beam.
Solution:
Maximum weight of person=
Part (b)
The forces that the walls A and B exert on the beam when the same person is standing at point D
Part (c)
The forces that the walls A and B exert on the beam when the same person is standing 2.0 m to the right of B .
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