Prove that change in kinetic energy of a paticle is equal to the work done on it by a variable force.

Assertion: The change in kinetic energy of a partical is equal to the work done on it by the net force. Reason: Change in kinetic energy of partical is equal to the work done in case of a system of one partical.

A : The change in kinetic energy of a particle is equal to the work done on it by the net force. R : The work-energy theorem can be used only in conservative field.

A : The change in kinetic energy of a particle is equal to the work done on it by the net force. R : The work-energy theorem can be used only in conservative field.

Energy of a body is defined as its capacity of doing work. State whether the following statement is TRUE or FALSE. "The change in kinetic energy of a particle is equal to the work done on it by the net force"

Explain work done by a variable force.

Write a note on work done by a variable force.

The velocity of a body moving in a straight line is increased by applying a constant force F, for some distance in the direction of the motion. Prove that the increase in the kinetic energy of the body is equal to the work done by the force on the body.

The velocity of a body moving in a straight line is increased by applying a constant force F, for some distance in the direction of the motion. Prove that the increase in the kinetic energy of the body is equal to the work done by the force on the body.

Work Done By A Variable Force