Question

Prove that total wrok done by all the forces acting on a body is equal to change in kinetic energy.

Answer 1

Answer:

To Prove that the change in kinetic energy of the body is equal to the work done by the force on the body :

The work done on the object will cause a damage in its velocity.

Let its velocity change from u to v.

Thus, work done is equal to the increase in kinetic energy.

KE=mv2, Where m is the mass and v is the velocity of the object in motion.

the work-energy theorem work done is not of a single force, instead it is the total work done by all the forces working on the object.

Hope it helps u !!