If three concurrent forces acting on a body keep it in equilibrium, then each force is proportional to the sine of angle between the other two forces.
If three concurrent forces keep a body A in equilibrium, the 3 forces must be co planar.
If three concurrent forces acting on a body keep it in equilibrium, then each force is proportional to the sine of angle between the other two forces.
If three concurrent forces keep a body A in equilibrium, the 3 forces must be co planar.