Question 3

Question 3

Method of Joints question 3

Calculate the force in member CH, F_CH.

Calculate the force in member CH, F_CH.

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Step 1:
Determine the order of joints to solve

Step 1:
Determine the order of joints to solve

Method of Joints solution step 1

Step 2:
Draw truss FBD and solve for reaction forces

Step 2:
Draw truss FBD and solve for reaction forces

Method of Joints solution step 2

Step 3:
Apply method of joints to solve for F_CH

Step 3:
Apply method of joints to solve for F_CH

Method of Joints solution step 3

Useful formula:

Useful formula:

Method of Joints formula

Congratulations! You've completed all the questions in this topic. Let's look at C3.3: Method of Sections now.