What is the difference between momentum and Kinetic energy?
Kinetic energy (just energy: just a quantity) is an expression of the fact that a moving object can do work on anything it hits; it quantifies the amount of work the object could do as a result of its motion. Momentum(a force- has a direction and magnitude) is the product of mass and velocity, or equivalently, the integral of force with respect to time. A car with a certain mass and velocity will have a certain momentum…it will take an equal amount of force to stop this car. Example: Putting this simply, if to cars collide one have greater momentum then the car with greater momentum will push the lesser car back. Kinetic energy is what makes the dent in the car…and it transferred into heat and light.
