General Knowledge - Basic General Knowledge - Discussion

Discussion Forum : Basic General Knowledge - Section 1 (Q.No. 26)
26.
Friction can be reduced by changing from
sliding to rolling
rolling to sliding
potential energy to kinetic energy
dynamic to static
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
54 comments Page 2 of 6.

Devbrat said:   1 decade ago
Answer is wrong beacause :.

In sliding- surface is contact with surface and more friction than rolling.

In rolling- one point is contacted with surafce at a time so less friction than sliding.

Hence the answer is wrong.

Akshay said:   1 decade ago
Coefficient of rolling friction is always less than that of sliding friction.

Chandru said:   1 decade ago
Mass of an object leads to excerting force against the surface while sliding. While rolling an object then the mass gets acceleration and gets momentum with kinetic energy that reduces friction against the surface.

Vamsi said:   1 decade ago
To applying the slow moment of force to it, then it is in fast motion.

Anupam rakshit said:   1 decade ago
How rolling can affect friction ?

Ravi said:   1 decade ago
In sliding more surface area is used means more friction and more loss to the object means damaged.

But in sliding less surface area or move along only one axis therefore less friction.

Deepak Kumar said:   1 decade ago
Slidng: area of contaCt is more (greater friction).
Roling: area of contact becomes much less (lower friction).

Sangey said:   1 decade ago
In sliding friction whole part of the body is contact with the surface whereas in rolling friction only one part of object is in contact when the body is in motion.

Mani said:   1 decade ago
Sliding consist more friction than rolling. Because it has sliding consist large contact surface than rolling.

Kriti said:   1 decade ago
Why its vice versa is not true?


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