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QJEEM19Ph7e6e: JEE Main 2019 Physics - Class 11 JEEM19Ph7e6e Solution: A particle of mass 'm' is moving with speed '2v' and collides…

A particle of mass 'm' is moving with speed '2v' and collides with a mass '2m' moving with speed 'v' in the same direction. After collision, the first mass is stopped completely while the second one splits into two particles each of mass 'm', which move at angle 45° with respect to the origianl direction. The speed of each of the moving particle will be :-

Multiple Choice Options

  • A 2 2v
  • B v / (2 2 )
  • C v / 2
  • D 2v

Step-by-Step Verified Solution

Initial momentum · Pi = 2mv + 2mv = 4 mv
Let v' be the speed of l particle JEE Main 2019 (Online) 9th April Evening Slot Physics - Center of Mass and Collision Question 86 English Explanation ∴2mv2=4mv
⇒ v' = 22 v

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