Work, Energy and PowerWorkEnergy Theorem (AIIMS Physics): Questions 5  9 of 10
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Question number: 5
» Work, Energy and Power » WorkEnergy Theorem
Question
A bullet loses of its velocity when it passes through a plank. Find the maximum number of planks through which it can pass.
Choices
Choice (4)  Response  

a.  10 

b.  5 

c.  3 

d.  9 

Question number: 6
» Work, Energy and Power » WorkEnergy Theorem
Question
A block of mass 20 kg is moving in xdirection with a constant speed of. It is subjected to a retarding force during its travel fromto . Its final kinetic energy will be –
Choices
Choice (4)  Response  

a.  500 joules 

b.  850 joules 

c.  750 joules 

d.  920 joules 

Question number: 7
» Work, Energy and Power » WorkEnergy Theorem
Question
A bullet when fired at a target with a velocity of , penetrates 4.5 meter into it. If the bullet is fired with the same velocity at a similar target with a thickness 0.5 meter, then it will emerge from it with a velocity of –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 8
» Work, Energy and Power » WorkEnergy Theorem
Question
Ratio of mass of proton and mass of electron is nearly about 1840. Now, if proton is accelerated by a potential difference of 2 KV, its kinetic energy is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 9
» Work, Energy and Power » WorkEnergy Theorem
Question
A body rests on a horizontal rough surface. The coefficient of friction between the body and the surface is . The body is given a velocity of . What is the distance covered by the body before coming to rest?
Choices
Choice (4)  Response  

a.  112.5 m 

b.  100 m 

c.  120.6 m 

d.  132.5 m 
