A 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 `30 ms^(–1)`, then the velocity of bigger part will be : -

Options

A. `10sqrt2 m//sec`
B. `10/sqrt2 m//sec`
C. `15sqrt2 m//sec`
D. `15/sqrt2 m//sec`