A bullet of mass 
leaves a gun of mass 
kept on a smooth horizontal surface. If the speed of the bullet relative to the gun is 
, the recoil speed of the gun will be
a)
b)
c)
d)
A bullet of mass leaves a gun of mass kept on a smooth horizontal surface. If the speed of the bullet relative to the gun is , the recoil speed of the gun will be
a)
b)
c)
d)
Question ID - 52971 | SaraNextGen Top Answer
A bullet of mass leaves a gun of mass kept on a smooth horizontal surface. If the speed of the bullet relative to the gun is , the recoil speed of the gun will be
a)
b)
c)
d)
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A bullet of mass |
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b) |
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c) |
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d) |
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1 Answer
127 votes
Answer Key / Explanation : (b) -
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(b) Speed of the bullet relative to ground
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where 
is recoil velocity of gun. Now for gun-bullet system applying the conservation law of momentum, we get
or 
or 
127 votes
Answer Link
127