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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The absorption of ink by blotting paper involves
A) viscosity of ink
B) capillary action phenomenon
C) diffusion of ink through the blotting
D) siphon action
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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