Definition Of Linear Kinetic Energy
For a single particle of mass normalsize m moves with velocity normalsize v its kinetic energy is officially defined as.
Definition of linear kinetic energy. The extended object s complete kinetic energy is described as the sum of the translational kinetic energy of the centre of mass and rotational kinetic energy of the centre of mass. With m being an object s rest mass v and v its velocity and speed and c the speed of light in vacuum we use the expression for linear momentum where. Kinetic energy form of energy that an object or a particle has by reason of its motion. Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass.
The rotational kinetic energy is represented in the following manner for a. The kinetic energy of a rotating body can be compared to the linear kinetic energy and described in terms of the angular velocity. Thomas young 1773 1829 derived a similar formula in 1807 although he neglected to add the to the front and he didn t use the words mass and weight with the same precision we do nowadays. Kinetic energy synonyms kinetic energy pronunciation kinetic energy translation english dictionary definition of kinetic energy.
Kinetic energy a bowling ball has kinetic energy when it is moving. Thus an object s kinetic energy is defined mathematically by the following equation. Kinetic energy definition the energy of a body or a system with respect to the motion of the body or of the particles in the system. If a body s speed is a significant fraction of the speed of light it is necessary to use relativistic mechanics to calculate its kinetic energy in special relativity theory the expression for linear momentum is modified.
The si unit for energy is the joule newton x meter in accordance with the basic definition of energy as the capacity for doing work the kinetic energy of an object is the energy it possesses because of its motion. Naturally the kinetic energy of an object at rest should be zero. When it strikes the pins some of that energy is passed on to the pins. Energy that an object or system has.
K mv 2. 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.