Lesson 4, Topic 2
In Progress

# Resultant & Equilibrant Forces

Lesson Progress
0% Complete

For a body to be in equilibrium, the sum of forces in one direction must be equal to the sum of the forces in the opposite direction.

From the force board experiment, the resultant R of two forces A and B acting at point O is found using the parallelogram method. It is found to be equal in magnitude but opposite in direction to the third force. This third force which is equal in magnitude but opposite in the direction of the resultant force is called equilibrant force, therefore,

A resultant force is that single force that acts alone and has the same effect in magnitude and direction as two or more forces acting together.

An equilibrant force is a single force which will balance all other forces taken together. It is equal in magnitude but opposite in direction to the resultant force.

If F1, F2, and F3 are in equilibrium, F1 is the equilibrant of F2 and F3, F3 is the equilibrant of F1 and F2, F2 is the equilibrant of F1 and F3.

error: