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A body at rest breaks up into 3 parts. I...

A body at rest breaks up into `3` parts. If `2` parts having equal masses fly off perpendicularly each after with a velocity of `12 m//s` when the velocity of the third part which has `3 times` mass of each part is

A

`4sqrt(2)m//s` at an angle of `45^(@)` from each body

B

`24sqrt(2)m//s` at an angle of `135^(@)` from each body

C

`6sqrt(2)m//s` at `135^(@)` from each body

D

`4sqrt(2)m//s` at `135^(@)` from each body

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The correct Answer is:
D
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