Question

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1. Give two situations where it is desirable to increase friction.
2. What is ‘streamlining'? How is it useful?​

Answer 1

Explanation:

1. Two situations where it is desirable to increase friction are: Tyres have designs and patterns with grooves on the surface to increase friction with the road.

2. Streamlining is a design that offers the least resistance to the flow of a fluid, especially air or water. Friction is minimum for a streamlined shape, which is rounded in the front and narrow at the back. It is useful as: Ship also have streamlined shapes to reduce friction with water.

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Answer 2

Answer:

2. the process of making work simple. we use streamlining to make work simple.

1. we use friction 1.to make any thing move , we use friction for pulling something.

Explanation:

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