Amateur Athletic Federation of India (AAFI) was formed in 1946 at the initiative of Maharaja Yadvindra Singh, the then President of Indian Olympic Association with Prof. G.D. Sondhi as its first President.
5. It is easier to roll a barrel full of coal tar than to pull it because
Options
A. the full weight of the barrel comes into play when it is pulled
B. the rolling friction is much less than the sliding friction
C. more surface area of the barrel is in contact with the road when it is pulled
D. coal tar is a liquid and it flows in the barrel when it is rolled