Question :
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 : D
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 : D
Description :
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If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same
A) velocity
B) momentum
C) acceleration
D) kinetic energy
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Let a thin capillary tube be replaced with another tube of insufficient length then, we find water
A) will overflow
B) will not rise
C) depressed
D) change its meniscus