Partie1: la mécanique " l'équilibre d'un corps solide soumis à deux forces" 3AC

In this lesson, we will learn the conditions for the equilibrium of a rigid body when acted upon by only two forces. A body is in equilibrium if it remains at rest or moves in a uniform rectilinear motion without change. Lesson topics: The concept of equilibrium of a rigid body. Representing force using a vector. Conditions for the equilibrium of a body subjected to two forces: The two forces must be along the same line of action. They must be of equal magnitude. They must be in opposite directions. With a practice exercise.