It is easier to roll a barrel than to pull it on the road
Answers
Answered by
45
This is due to the fact that in both the cases i.e rolling of the barrel and pulling it, the friction varies.
When something is rolling the friction acting on it is called rolling friction. But when a body is pulled or pushed i.e it slides over the surface then the friction is called sliding friction.
And generally rolling friction is less than sliding friction and therefore it is easy to roll a barrel instead of pulling or pushing it.
When something is rolling the friction acting on it is called rolling friction. But when a body is pulled or pushed i.e it slides over the surface then the friction is called sliding friction.
And generally rolling friction is less than sliding friction and therefore it is easy to roll a barrel instead of pulling or pushing it.
Answered by
48
Hi there !!
Here's your answer
It is true that it is easier to roll a Barrell than pull it on the road.
This phenomenon can be explained by the concept of friction.
Friction is a contact force that stops moving things or prevents stationary things from moving. It is caused due to interlocking of minute irregularities present in both the surfaces.
There are two types of friction :
1) Static friction 2) Kinetic friction
• Kinetic friction is classified into 2 :
1) Sliding friction : The friction encountered when an object slides on other surface.
2) Rolling friction : The friction encountered when an object rolls on other surface.
• Coming to the answer :
It is easier to roll a barrel than to pull it on the road because while pulling the barrel because rolling friction is less than sliding friction. When we roll the Barrell , the interlocking doesn't stay for a long time , while when we slide , the irregularities get enough time to be interlocked for a comparitively longer time. Also, it is easier to roll an object than to slide. That is why , we need to apply more force while pulling a Barrell than sliding it.
_____________________
Hope it helps ^•^
Here's your answer
It is true that it is easier to roll a Barrell than pull it on the road.
This phenomenon can be explained by the concept of friction.
Friction is a contact force that stops moving things or prevents stationary things from moving. It is caused due to interlocking of minute irregularities present in both the surfaces.
There are two types of friction :
1) Static friction 2) Kinetic friction
• Kinetic friction is classified into 2 :
1) Sliding friction : The friction encountered when an object slides on other surface.
2) Rolling friction : The friction encountered when an object rolls on other surface.
• Coming to the answer :
It is easier to roll a barrel than to pull it on the road because while pulling the barrel because rolling friction is less than sliding friction. When we roll the Barrell , the interlocking doesn't stay for a long time , while when we slide , the irregularities get enough time to be interlocked for a comparitively longer time. Also, it is easier to roll an object than to slide. That is why , we need to apply more force while pulling a Barrell than sliding it.
_____________________
Hope it helps ^•^
Anonymous:
There are two types of friction :- Static and kinetic. And in kinetic there are two types sliding and rolling. So in total there are three types:- Static, sliding and rolling
Please correct it in your answer. No offence
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