Answer:
Resultant
1. Definition: A resultant of number of forces acting on a body is a single. Force which can produce the same effect on the body as it is produced by all the forces acting together.
Resultant (net) force causes the displacement of a body (i.e. body moves).
equilibrant
Definition: An equilibrant of number of forces acting on a body is a single force which cancels the effect of resultant of a system of forces or which brings the system and the body is equilibrium.
Equilibrant keeps the body at rest (i.e. in equilibrium).
