List the characteristics of friction
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- Force friction is always opposites to the force causing the relative motion between the surface.
- Force of friction always act at the points of contacts of the two surface.
- As the force causing motion increases the frictional force increases up to certain maximum value and that maximum value of force of friction is called limiting friction.
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Friction is a force that opposes relative motion between systems in contact. One of the simpler characteristics of friction is that it is parallel to the contact surface between systems and always in a direction that opposes motion or attempted motion of the systems relative to each other.
Explanation:
Everyday Examples of Sliding Friction
- Rubbing both hands together to create heat.
- A sled sliding across snow or ice.
- Skis sliding against snow.
- A person sliding down a slide is an example of sliding friction.
- A coaster sliding against a table.
- A washing machine pushed along a floor.
- An iron being pushed across material.
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