Two seconds after projection a projectile is travelling in a direction inclined at $30^o$ to horizontal, after one more second it is travelling horizontally. What is the magnitude and direction of its velocity at initial point

- A
$20\sqrt {3\,} \,\,m/s\,,\,\,{30^o}$

- B
$20\sqrt {3\,} \,\,m/s\,,\,\,{60^o}$

- C
$10\sqrt {3\,} \,\,m/s\,,\,\,{30^o}$

- D
$10\sqrt {3\,} \,\,m/s\,,\,\,{60^o}$

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