Under kinetic energy briefly explain the term moving bullet?
Answers
Energy is a fundamental notion in physics and appears in a variety of forms, such as: kinetic energy, potential energy, heat energy, and electrical energy. Kinetic energy is particularly important in our daily life, and is an excellent example of a quadratic relation.
In this step we will
define the kinetic energy of a mass m moving with velocity v
learn about the Law of Conservation of Energy and its implications for bullets
see how physicists analyse elastic particle collisions.
Definition of kinetic energy
Physicists regard kinetic energy as energy due to motion, and sometimes also refer to the amount of work that a moving particle can do. For a single particle of mass m moves with velocity v , its kinetic energy is officially defined as
T=12mv2.
The dependence of the kinetic energy T on the velocity v is quadratic. This is a marked difference from what we saw with the momentum p=mv , which depends linearly on velocity. So if we double the speed of a particle, its momentum doubles, but its kinetic energy is multiplied by four. If we triple the speed of a particle, its momentum triples, but its kinetic energy is multiplied by nine
A bullet is a kinetic projectile and the component of firearm ammunition that is expelled from the gun barrel during shooting. The term is from Middle French and originated as the diminutive of the word boulle (boullet), which means "small ball". Bullets are made of a variety of materials such as copper, lead, steel, polymer, rubber and even wax. They are available either singly as in muzzleloading and cap and ball firearms or as a component of paper cartridges, but much more commonly in the form of metallic cartridges. Bullets are made in varied shapes and constructions depending on the intended applications, including specialized functions such as hunting, target shooting, training and combat.