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Answer:
4.rolling friction
Explanation:
when our body rolls over the surface of another body,the friction offered is called rolling friction
ex:It is easy to pull a suitcase which has rollers
2.a.fluid friction
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Hope it helps you dear.
Explanation:
1.Friction due to a fluid is called drag.
2.Friction is a contact force.
3. To reduce fluid friction, the object should have a streamlined shape.
4.The heat generated in a machine with moving parts is because of friction.
5.Friction occurs due to the interlocking of irregularities in the surfaces.
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