For the truss shown, determine the force in $BF$ by the method of joints and then check this result using the method of sections. Hint: To apply the method of sections, first obtain the value of $BE$ by inspection.
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For the truss shown, determine the force in $BF$ by the method of joints and then check this result using the method of sections. Hint: To apply the method of sections, first obtain the value of $BE$ by inspection.