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 :
Related Questions - 1
Rectifiers are used to convert
A) Direct current to Alternating current
B) Alternating current to Direct current
C) high voltage to low voltage
D) low voltage to high voltage
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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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Stars appears to move from east to west because
A) all stars move from east to west
B) the earth rotates from west to east
C) the earth rotates from east to west
D) the background of the stars moves from west to east
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out of the following, which is not emitted by radioactive substance?
A) Electrons
B) Electromagnetic radiations
C) Alpha particles
D) Neutrons