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A projectile is projected at 30^@ from h...

A projectile is projected at `30^@` from horizontal with initial velocity 40 `ms^(-1)`.The velocity of the projectile at t=2s from the start will be:
(Given g=10 `m/s^2`)

A

40`sqrt3` `ms^(-1)`

B

20 `ms^(-1)`

C

zero

D

20`sqrt3` `ms^(-1)`

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