

MCQOPTIONS
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1. |
_It is easier to roll a stone up a sloping road than to lift it vertical upwards because$? |
A. | Work done in rolling is more than in lifting. |
B. | Work done in lifting the stone is equal to rolling it. |
C. | Work done in both is same but the rate of doing work is less in rolling. |
D. | Work done in rolling a stone is less than in lifting it. |
Answer» E. | |