HOOKE'S LAW Introduction In physics, Hooke's Law is one of the fundamental principles governing how objects deform under external forces . Named after the 17th-century British physicist Robert Hooke, this law provides a crucial understanding of the behavior of elastic materials, such as springs and rubber bands. Whether stretching a rubber band or compressing a spring, Hooke's Law helps explain what happens when forces act on these materials. What is Hooke's Law: Hooke's Law states that the force F needed to extend or compress a spring by some distance x is proportional to that distance. Mathematically, it is expressed as: F= -kx Here k represents the spring constant, which is the measure of the stiffness of the spring, and x is the displacement from the displacement position. The negative sign indicates that the force exerted by the spring is in the opposite direction of the displacement. Understanding the Spring Constant: The spring constant k is a critical co
Force And Momentum Force: Force is an agent which produce distortion in the body. Force is a Vector Quantity. Unit of Force: The unit of force is newton . It is denoted by N. Newton: Newton is the force required to produce 1m/s^2 acceleration in boy of mass 1kg. Momentum: The momentum is the product of mass and velocity. Mathematically, it can be written as, p=mv p => Momentum m=> Mass v=>Velocity Momentum is a vector quantity. Momentum is the relationship between mass and velocity of the body. Greater the mass less will be velocity of the object. For Example: You are asked to stop two objects one is a bicycle and another is a truck. Which will be easy to stop? Off course it is easy to stop a bicycle because it has small mass and thus possess less momentum. On the o