railway RRB JE (CBT I + CBT II) Mock Test 2024 Engineering Mechanics Equilibrium and Friction Equilibrium
In a system of coplanar forces, when the force polygon closes but funicular polygon does not close, the forces are:
1
equivalent to a couple
2
equivalent to a resultant whose magnitude, direction and line of action can be determined.
3
in equilibrium
4
equivalent to a couple and a resultant force.