### Identify the Nonconservative Force
1. **Understanding Nonconservative Forces**: Nonconservative forces are those forces that do not conserve mechanical energy. This means that the work done by these forces depends on the path taken, rather than just the starting and ending points.

2. **Analyzing the Options**:
- a. **Gravity**: Gravity is a conservative force because the work done by gravity depends only on the change in height, regardless of the path taken.
- b. **Friction**: Friction is a nonconservative force because it dissipates energy as heat and depends on the path taken.
- c. **Both choices A and B are valid**: This option suggests that both forces are nonconservative, which is incorrect since gravity is conservative.
- d. **Magnetism**: Magnetic forces are generally considered conservative as they do not do work on moving charges along a closed path.

### Final Answer
The correct answer is **b. friction**.

Question

### Identify the Nonconservative Force
1. **Understanding Nonconservative Forces**: Nonconservative forces are those forces that do not conserve mechanical energy. This means that the work done by these forces depends on the path taken, rather than just the starting and ending points.

2. **Analyzing the Options**:
   - a. **Gravity**: Gravity is a conservative force because the work done by gravity depends only on the change in height, regardless of the path taken.
   - b. **Friction**: Friction is a nonconservative force because it dissipates energy as heat and depends on the path taken.
   - c. **Both choices A and B are valid**: This option suggests that both forces are nonconservative, which is incorrect since gravity is conservative.
   - d. **Magnetism**: Magnetic forces are generally considered conservative as they do not do work on moving charges along a closed path.

### Final Answer
The correct answer is **b. friction**.

Knowee AI · Accepted Answer

### Identify the Nonconservative Force
1. **Understanding Nonconservative Forces**: Nonconservative forces are those forces that do not conserve mechanical energy. This means that the work done by these forces depends on the path taken, rather than just the starting and ending points.

2. **Analyzing the Options**:
   - a. **Gravity**: Gravity is a conservative force because the work done by gravity depends only on the change in height, regardless of the path taken.
   - b. **Friction**: Friction is a nonconservative force because it dissipates energy as heat and depends on the path taken.
   - c. **Both choices A and B are valid**: This option suggests that both forces are nonconservative, which is incorrect since gravity is conservative.
   - d. **Magnetism**: Magnetic forces are generally considered conservative as they do not do work on moving charges along a closed path.

### Final Answer
The correct answer is **b. friction**.

Which of the following is an example of a nonconservative force?Select one:a.gravityb.frictionc.Both choices A and B are valid.d.magnetism

Question

Which of the following is an example of a nonconservative force?

Solution

Identify the Nonconservative Force

Final Answer

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