Question

work done by internal and external force on a system is equal to the change​

Answer 1

Answer:

But for a system of particles the work done by internal forces is not zero. ... External force increases the energy of the system. The change in kinetic energy of a system is equal to ths work done on the system by the external as well as the internal forces.

please mark me as brainlist

Answer 2

Explanation:

1. External force increases the energy of the system. The change in kinetic energy of a system is equal to ths work done on the system by the external as well as the internal forces.