Lesson: Lami’s TheoremMathematics
In this lesson, we will learn how to solve problems about the equilibrium of a particle under the action of three coplanar forces using Lami’s theorem.
Sample Question Videos
In the given figure, particle is in equilibrium under the effect of the forces shown which are in newtons. Find the force .
A body weighing 12 N is attached to one end of a light, inextensible string. The other end of the string is fixed to a vertical wall. A horizontal force , holds the body in equilibrium when the measure of the angle between the wall and the string is . Find , the tension in the string and , the horizontal force.
A body weighing N is placed on a smooth plane inclined at to the horizontal. If it is kept in equilibrium under the action of a horizontal force of magnitude 33 N, find the weight of the body and the reaction of the plane .