Question

No ones answer me whenever i upload a question everyone spams but never gives the right answer :( pls anyone answer me i am crying
pls give the reasons |

Answer 1

Answer:

ok bro first answer is

Explanation:

A The result of smoothening is that friction between the striker and the board decreases and striker slides smoothly on the surface, not losing its momentum too quickly. Hence, we can say that sprinkling of powder on the carrom board reduces friction and makes sliding smoother and easier.

B the old machine make so much of noise because there parts get old and I think you that all the Iron machine need oiling.

A system with a low coefficient of friction has a low resistance to the surfaces sliding across one another. C The fact that ice has a very low coefficient of friction it is difficult to apply force; hence it makes it difficult to walk on the ice.

D As we know larger the area of contact lesser the pressure. So, in order to reduce the pressure heavy vehicles have broad tyres to increase the area of contact with the ground. ... Heavy vehicles have broad tyres because broad tyres have large area of contact and less pressure on the ground.

D By rubbing their hands with soil, they make their hands rough. A rough surface has more friction which enhances their grip while holding the opponent.

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