Which of the following is a nonconservative force?Group of answer choicesgravitational forceelectric forcenormal forcestrong nuclear force

The nonconservative force among the options provided is the normal force.

Here's why:

1. Gravitational force: This is a conservative force because the work done by or against it is independent of the path taken. For example, if you lift a book and then lower it back down, the net work done by gravity is zero.

2. Electric force: This is also a conservative force. The work done in moving a charge between two points in an electric field is independent of the path taken.

3. Normal force: This is a nonconservative force. The work done by the normal force depends on the path taken. For example, if you push a box up a ramp (as opposed to lifting it straight up), the normal force does more work.

4. Strong nuclear force: This is a conservative force. The work done in moving a particle in a nuclear force field is independent of the path taken.