Objects a and B Interact with Each Other Via Both

question 39

Multiple Choice

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