Question

4. What ways do you suggest to reduce
5. What conditions are needed for static friction to come into
6. Give examples of practical application of static friction. (A
7. Give examples showing the existence of sliding friction. (A
8. Explain how can you measure frictional force? (AS)
9. Explain how does lubrication reduces friction? (AS)
10. What kinds of friction do you know? (AS)
11. Explain why sliding friction is less than static friction? (A
12. Give examples of how is friction responsible for energy wa
reduce energy wastages by friction. (AS)
13. Seetha is observing a moving bus with the luggage on it​

Answer 1

Answer:

9.How does lubricant reduces friction

Explanation:

Lubricant seprates the surface of the bodies in contact.Therefore, reduces the percentage of interlocking in between the surfaces.In this way it helps in reducing firction

Hope it helps

Answer 2

Answer:

Friction is caused by the irregularities on the two surfaces in contact.