Well.. method of sections is like, we have to cut the truss into two portions. the section we take should pass along the member whose force has to be determined. Both the portions will be in equilibrium and we can use either one of the two portions to determine the force on the member.
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Homework Statement
Find the force in member JQ for the Baltimore truss where all angles are 30º, 60º, 90º or 120º.
Homework Equations
Length from A to N can be taken as 6 units.
The Attempt at a Solution
To use method of sections.