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A light body is projected with a velocit...

A light body is projected with a velocity `(10hat(i)+20 hat(j)+20 hat(k)) ms^(-1)`. Wind blows along X-axis with an acceleration of `2.5 ms^(2)`. If Y-axis is vertical then the speed of particle after 2 second will be `(g=10 ms^(2))`

A

`25 ms^(-1)`

B

`10sqrt(5) ms^(-1)`

C

`30 ms^(-1)`

D

none of these

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The correct Answer is:
A
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