A particle is projected with `200 ms^(-1)` at an angle `60^@`. At the highest point, it explodes into three particles of equal masses. One goes vertically upwards with velocity `100 m s^(-1)`, second particle goes vertically downwards. Then, the velocity of the third particle will be :

Options

A. `200 m s^(-1)`
B. `300 m s^(-1)`
C. `120 m s^(-1)` at `60^@`
D. `200 m s^(-1)` at `30^@`