Rotation in Two Dimensions

This lecture covers the concept of rotation in two dimensions, including the vector product, moment of a force, statics, and the theorem of angular momentum. Examples such as a ladder against a wall and a rotating system with a disc, mass, and counterweight are used to illustrate equilibrium conditions. The lecture also delves into the theorem of angular momentum, explaining how the center of mass of an object follows a constant velocity and the rotational angular velocity remains constant. The relationship between force, momentum, and rotation is explored through Newton's laws, emphasizing the concept of angular momentum and its calculation around a fixed point.