Question

A non-conservative force acting on a particle:_________.

A) does work that can depend on the path of motion.
B) does work equal to the change in the kinetic energy of the particle.
C) does work that is never equal to the change in kinetic energy of the particle.
D) can not have an associated potential energy function.
E) does work that only depends on the endpoints of the path, not on the path between the endpoints.

Answer 1

A non-conservative force does work that depends on the path taken and cannot have an associated potential energy function.

Step-by-step explanation:

A non-conservative force acting on a particle does work that depends on the path of motion. This is contrasted with conservative forces, where the work done is path-independent and can be associated with a potential energy function. Unlike conservative forces, non-conservative forces such as friction result in a change to mechanical energy that is not recoverable, because the mechanical energy is converted into forms like thermal energy that are not easily transformable back into work. Therefore, the correct answer is A) does work that can depend on the path of motion, and D) cannot have an associated potential energy function.

Answer 2

Answer: Option A.

does work that can depend on the path of motion.

Step-by-step explanation:

A non-conservative force acting on a particle does work that can depend on the path of motion because a non conservative force is a type of force that can remove energy from a progressive system and this energy cannot be restored back and the forces are path dependent because it matters where the particle begin or end.

It is a type of force such as friction or air resistance. This type of force does work that only depend on the path of motion.