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 4 of 6.
Sathwika said:
1 decade ago
Can any one tell me what friction mean?
Ashish kumar neeraj said:
1 decade ago
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
There are several types of friction: Dry friction resists relative lateral motion of two solid surfaces in contact.
There are several types of friction: Dry friction resists relative lateral motion of two solid surfaces in contact.
Chandra said:
1 decade ago
Frictional force of the sliding more than the rolling because surface area of sliding body more than the rolling body.
Example: If we throw a bangle on a flour which has slight rough surface.
The bangle moves for some time. If we throw a bolt on the surface of the flour, then the bolt does not move so far comparing to the bangle, because it has flat surfaces.
Example: If we throw a bangle on a flour which has slight rough surface.
The bangle moves for some time. If we throw a bolt on the surface of the flour, then the bolt does not move so far comparing to the bangle, because it has flat surfaces.
Arun said:
1 decade ago
Just take an example of pulling a bucket of water from a well. It requires considerably less effort to draw the water from the well using a pulley which acts as a roller.
Ratnesh said:
1 decade ago
Answer is wrong:
D would be correct. Friction can be brought to zero if we change the object from dynamic to static position. D would be more appropriate than A.
D would be correct. Friction can be brought to zero if we change the object from dynamic to static position. D would be more appropriate than A.
Pragati said:
1 decade ago
Rolling friction is the resistance to motion experienced by a body when it rolls upon another. It is much less than sliding friction for same pair of bodies. When one body rolls upon another, there is theoretically no sliding or slip between them. And if both are perfectly rigid, there is no surface of contact.
Adarsh said:
9 years ago
Coefficient of friction for rolling is a far less than that of sliding. And static state doesn't mean no force is applied on body. Friction is there to resist force.
Adarsh said:
9 years ago
Friction doesn't depend on surface area.
Shubhangi said:
9 years ago
Good information, Thank you all.
Arsh said:
9 years ago
How can we reduce friction from sliding to rolling?
But on rolling a frictional force will be acting on the body thereby, resisting its motion. Whereas sliding can take place if there is a less frictional floor.
But on rolling a frictional force will be acting on the body thereby, resisting its motion. Whereas sliding can take place if there is a less frictional floor.
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