It is easier to roll a barrel full of coal tar than to pull it because

Question

Admin · Accepted Answer

The rolling friction is much less than the sliding friction

Admin · Answer

More surface area of the barrel is in contact with the road when it is pulled

Admin · Answer

The full weight of the barrel comes into play when it is pulled

Admin · Answer

Coal tar is a liquid and it flows in the barrel when it is rolled

Q. It is easier to roll a barrel full of coal tar than to pull it because