A body at rest breaks up into $3$ parts. If $2$ parts having equal masses fly off perpendicularly each after with a velocity of $12m/s$, then the velocity of the third part which has $3$ times mass of each part is
A body at rest breaks up into $3$ parts. If $2$ parts having equal masses fly off perpendicularly each after with a velocity of $12m/s$, then the velocity of the third part which has $3$ times mass of each part is
- A
$4\sqrt 2 \,m/s$ at an angle of ${45^o}$ from each body
- B
$24\sqrt 2 \,m/s$ at an angle of ${135^o}$from each body
- C
$6\sqrt 2 \,m/s$ at ${135^o}$from each body
- D
$4\sqrt 2 \,m/s$ at ${135^o}$ from each body
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