Question

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 1

Answer:

because work done in rolling a stone is less than in lifting it.

Explanation:

work done in rolling a stone is lesser than lifting it...

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Answer 2

Answer:

What is more convenient rolling of stone on a sloping road than to lift it vertical upwards?

A. Rolling is more convenient and more work done as compare to the  lifting

B. The work done by the  rolling stone is equal to the lifting

C. The work done in both is same but the rate of doing work is less in rolling

D. The work done in rolling a stone is less than in lifting it

Ans: D

Explanation: