Question

Work done by the conservative forces on a system is equal to

• A. the change in kinetic energy of the system
• B. negative of the change in potential energy of the system
• C. the change in total mechanical energy of the system
• D. none of these

Answer 1

The correct option is A the change in kinetic energy of the system

The work done by the conservative force on a system is equal to the change in kinetic energy of the system,

By work energy theorem,

$W=\Delta K$

$W=K_f-K_i$

The correct option is A.