Question 1

Question 1

Method of Sections question 1

Find the force in member DJ using the method of sections.

Find the force in member DJ using the method of sections.

Click below to show answer. X

Step 1:
Choose location of section cut

Step 1:
Choose location of section cut

Method of Sections solution step 1

Step 2:
Draw FBD of whole truss and solve for reactions

Step 2:
Draw FBD of whole truss and solve for reactions

Method of Sections solution step 2

Step 3:
Draw FBD of selected truss section cut, and apply equations of equilibrium to solve for F_DJ

Step 3:
Draw FBD of selected truss section cut, and apply equations of equilibrium to solve for F_DJ

Method of Sections solution step 3

Useful formula:

Useful formula:

Method of Sections formula

Now that you've mastered this question, you can try Question 2.