Question 1

Question 1

Method of Joints question 1

A strong monkey swinging on the truss exerts 3 kN at point D. Calculate the force induced in member AE.

A strong monkey swinging on the truss exerts 3 kN at point D. Calculate the force induced in member AE.

Click below to show answer. X

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_AE

Step 3:
Apply method of joints to solve for F_AE

Method of Joints solution step 3

Useful formula:

Useful formula:

Method of Joints formula

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