A body of mass 
moving with uniform velocity of 40 m/s collides with another mass 
at rest and then the two together begin to move with uniform velocity of 30 m/s. The ratio of their masses 
is
Text Solution
Verified by ExpertsThe correct answer is:
C
Initial momentum of the system = 
Final momentum of the system = 
By the law of conservation of momentum
⇒ ⇒ 
⇒ ⇒ 
= 
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