General Knowledge - Basic General Knowledge - Discussion
Discussion Forum : Basic General Knowledge - Section 1 (Q.No. 26)
26.
Friction can be reduced by changing from
Discussion:
54 comments Page 3 of 6.
Brish said:
1 decade ago
In sliding surface comes into contact while in rolling either point or line contact occurs between surface.
Pankaj Singal said:
1 decade ago
In sliding we have to apply more force to crush the irregularities interlocking between the two objects for example rubbing two sandpaper against each other.
While in rolling irregularities are not crushed beneath this irregular surface just roll over the other like a gear system and provide less friction and force to move.
While in rolling irregularities are not crushed beneath this irregular surface just roll over the other like a gear system and provide less friction and force to move.
Vipin mittal said:
1 decade ago
Frictional force in sliding > frictional force in rolling.
Because surface area of sliding will more than the rolling.
So, friction can be reduced by changing from sliding to solid.
Because surface area of sliding will more than the rolling.
So, friction can be reduced by changing from sliding to solid.
Nagabhushan said:
1 decade ago
Why cannot be potential energy to kinetic energy and dynamic to static friction please explain?
Bori said:
1 decade ago
Dynamic friction:- friction offered by the body when it is moving.
Static friction:- friction offered by the body when it is in steady.
When the body is moving as compared to steady state it offers less friction than the steady state.
Therefore D is not the answer.
And in other C option when potential energy is converted into kinetic energy experience certain friction on the surface.
Both C and D both are not correct answer.
Static friction:- friction offered by the body when it is in steady.
When the body is moving as compared to steady state it offers less friction than the steady state.
Therefore D is not the answer.
And in other C option when potential energy is converted into kinetic energy experience certain friction on the surface.
Both C and D both are not correct answer.
Sarva said:
1 decade ago
Sliding has an one direction for flow but rolling has many direction to take flow, so opposing force will be reduced.
Avni said:
1 decade ago
This is because more of the body comes in contact with the surface than when rolling. Therefore while sliding friction is increased.
Jalepeno poke said:
1 decade ago
Since rolling friction is smaller than sliding friction, it helps reduce the amount of friction between two surfaces in contact.
Sameer said:
1 decade ago
Sliding has one direction but rolling has many direction to take flow.
Anu said:
1 decade ago
Rolling has point contact between the two actual condition of the motion points.
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