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12. Friction
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Q9 of 100 Page 230

Why is it more difficult to walk properly on a well-polished floor?

The well-polished floor offers very less resistance. Therefore, the shoes slip on it and its very difficult to walk properly.


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7

Out of sliding friction, static friction and rolling friction:

(a) which one is the smallest?


(b) which one is the largest?

8

Which type of friction comes into play when a book kept on cylindrical pencils is moved by pushing?

10

Why is it difficult to walk on a wet marble floor?

11

Which force is responsible for the wearing out of car tyres?

Questions · 100
12. Friction
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