Question

Three coplanar forces $P_1=P_2=P_3=2t$ act at a joint $O$, as shown in figure



From the force diagram, the force R to be applied at $O$ in the same plane to keep the joint $O$ in equilibrium is given by

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

Equilibrant should close the force polygon. So (b) is the correct answer.