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इंडियन गवर्नमेंट एग्जाम प्रेप

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
Correct Answer: D
Solution & Explanation
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