Objects A and B interact with each other via both conservative and nonconservative forces.Let K_A and K_B be the kinetic energies, U be the potential energy, and E_int be the internal energy.If no external agent does work on the objects then: A)K_A + U is conserved B)K_A + U + E_int is conserved C)K_A + K_B + E_int is conserved D)K_A + K_B + U is conserved E)K_A + K_B + U + E_int is conserved

Question

Quizplus · Accepted Answer

In a system where objects interact through both conservative and nonconservative forces, without external work being done, the total mechanical energy (kinetic plus potential) is not conserved due to the presence of nonconservative forces. However, the total energy, which includes kinetic energy, potential energy, and internal energy (accounting for energy lost or gained through nonconservative forces), remains conserved. This is because energy can neither be created nor destroyed, only transformed.

Objects a and B Interact with Each Other Via Both