Physics: Newton's Laws

This lecture covers the concepts related to physics, including the laws of Newton. It explains the notion of forces, such as weight, gravitational force, Coulomb's force, and friction. The first law of Newton, known as the principle of inertia, states that an object in motion remains in motion if no external force acts upon it. Examples and applications of these concepts are discussed, emphasizing the importance of inertial reference frames. The lecture also delves into the scalar and vector quantities, multiplication by a scalar, addition of vectors, and scalar product. Practical examples and demonstrations are provided to illustrate these fundamental principles.