Its is easier to roll a stone up sloping road than to lift it vertically upward because
A. work done in roll the stone is more then in lifting it
B. work in lifting the stone is equal to rolling it
C. work done in rolling the stone in less than in lifting it
D. work done in both is same but the rate of doing work is less in rolling
Answer:C
Its is easier to roll a stone up sloping road than to lift it vertically upward because
A. work done in roll the stone is more then in lifting it B. work in lifting the stone is equal to rolling it C. work done in rolling the stone in less than in lifting it D. work done in both is same but the rate of doing work is less in rolling