Work Energy Theorem Physics

The work energy theorem implies that a smaller change in kinetic energy results in a smaller penetration.

Work energy theorem physics.

The work energy theorem states that the net work done by the forces on an object equals the change in its kinetic energy. If there is no displacement there is no work done. The principle of work and kinetic energy also known as the work energy theorem states that the work done by the sum of all forces acting on a particle equals the change in the kinetic energy of the particle. The net work done by the forces acting on a particle is equal to the change in the kinetic energy of the particle.

Thus the work energy theorem describes the reasons behind this physics of no work. The amount of energy transferred by a force is called the work done by that force. Work is said to be done when an acting force displaces a particle. In physics work is the process of energy transfer to the motion of an object via application of a force often represented as the product of force and displacement.

W refers to the work done by the force f. The work energy theorem explains the reasons behind this physics of no work. This expression is called the work energy theorem and it actually applies in general even for forces that vary in direction and magnitude although we have derived it for the special case of a constant force parallel to the displacement. You might get tired if you keep standing for a long time but according to physics you have done zero work.

This definition can be extended to rigid bodies by defining the work of the torque and rotational kinetic energy. The theorem implies that the net work on a system equals the change in the quantity 1 2mv2 1 2 m v 2. You will understand more of the physics in this interesting article after you finish reading angular momentum. A force is said to do positive work if when applied the force has a component in the direction of the displacement of the point of application.

Equation 4 is the mathematical representation of an important result called the work energy theorem which in words can be stated as follows. Image will be uploaded soon work is said to be done when force acting on an object displaces the object.