Final answer:
Sliding friction is a force that opposes the motion of an object as it slides over a surface. Examples of sliding friction include a sled sliding down a snowy hill, a car's tires skidding on a wet road, and a person sliding on a playground slide.
Step-by-step explanation:
Sliding friction refers to the frictional force that opposes the motion of an object as it slides over a surface. It can occur between various combinations of materials, such as wood on wood, rubber on concrete, or metal on ice. Some examples of sliding frictions include:
- A sled sliding down a snowy hill
- A car's tires skidding on a wet road
- A person sliding on a playground slide