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: Option D

Explanation:

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