why is it easier to roll a barrel than to pull it along the road?

why is it easier to roll a barrel than to pull it along the road?
Category: General Reference 9 years ago
sarala
Asked 9 years ago

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Resistance from Earth is much less when rolling. Hence, it is easier to roll. That is why circular wheel is employed for carrying.
Gulshan Kumar Ajmani
Answered 9 years ago
Gulshan Kumar Ajmani

For pulling a barrel along the road you need to use extra effort, whereas it's not so while rolling the barrel

 

rambabu
Answered 4 years ago
rambabu

Friction during rolling is less as compare to pulling. It is easy to roll heavy thing.
Bol Bachchan
Answered 6 years ago
Bol Bachchan

rolling friction is lighter than sliding friction
arjun sai
Answered 8 years ago
arjun sai

google
Aakash Agarwal
Answered 7 years ago
Aakash Agarwal

Rolling takes less force in compare of pulling it.
AKP
Answered 7 years ago
AKP

Rolling requires less friction than pulling
sreevani
Answered 7 years ago
sreevani

Sliding friction is heavier than rolling friction.
V.R.JOTHIBASSU
Answered 7 years ago
V.R.JOTHIBASSU

Here the principle takes place that is rolling friction is more lighter than sliding friction.
Sasikanth
Answered 7 years ago
Sasikanth

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