Dynamics: Springs and Forces

This lecture covers the dynamics of objects under the influence of forces, focusing on the specific case of elastic springs. Starting with the general method of resolution, it delves into the special case of an elastic spring, discussing the steps involved in analyzing the forces acting on the object. The lecture also explores the concepts of natural length and stiffness of a spring, along with the implications of elongation. Various exercises are presented, including determining forces on objects on inclined planes, analyzing systems of masses connected by pulleys, and calculating accelerations and tensions in different scenarios.