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A body P has mass 2 m and velocity 5 v. Another body Q has mass 8 m and velocity 1.25 v. The ratio
of momentum of P and Q is :
  • a)
    2 : 1
  • b)
    1 : 1
  • c)
    1 : 2
  • d)
    3 : 2
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A body P has mass 2 m and velocity 5 v. Another body Q has mass 8 m an...
Momentum = mass x velocity  
Therefore in first case momentum = 2m x 5v = 10mv
​Therefore in second case momentum = 8m x 1.25v = 10mv
​Thus in both the cases momentum is the same, so, Ratio is 1:1
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Community Answer
A body P has mass 2 m and velocity 5 v. Another body Q has mass 8 m an...
Momentum (P) = m × v
body P = 2m×5v = 10mv
body Q = 8m×1.25v = 10mv

Ratio of momentum of P AND Q=
P body's momentum= 10
Q body's momentum= 10
ratio of both the bodies= 10/10= 1/1
ratio= 1:1--- Ans
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A body P has mass 2 m and velocity 5 v. Another body Q has mass 8 m and velocity 1.25 v. The ratioof momentum of P and Q is :a)2 : 1b)1 : 1c)1 : 2d)3 : 2Correct answer is option 'B'. Can you explain this answer?
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