A sheet of paper can be pulled out quickly from under a glass of water without spiling the water this phanomena illustrates?

(A) Lack of friction between paper and glass
(B) Newton’s third law of motion
(C) Inertia
(D) None of these

It is easier to roll a barrel than to pull it because?

(A) The full weight of the barrel comes into play when it is pulled
(B) Rolling friction much less then sliding friction
(C) The surface area of the barrel in contact with the road is more in the case of pulling
(D) Of a reason other then those mentioned

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