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1 kg stationary bomb is exploded in thre...

1 kg stationary bomb is exploded in three parts having mass `1:1:3` respectively. Parts having same mass move in perpendicular direction with velocity `39 m s^(-1)`, then the velocity of bigger part will be

A

`10sqrt2 m s^(-1)`

B

`10//sqrt2 m s^(-1)`

C

`15sqrt2 m s^(-1)`

D

`15//sqrt2 m s^(-1)`

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