Question

List the characteristics of friction

Answer 1

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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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Answer 2

Answer:

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

1. Rubbing both hands together to create heat.
2. A sled sliding across snow or ice.
3. Skis sliding against snow.
4. A person sliding down a slide is an example of sliding friction.
5. A coaster sliding against a table.
6. A washing machine pushed along a floor.
7. An iron being pushed across material.

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