Question

11. A particle projected from ground moves at angle 45°
with horizontal one second after projection and
speed is minimum two seconds after the projection.
The angle of projection of particle is [Neglect the
effect of air resistance)
(1) tan-'(3)
(2) tan-(2)
(3) tan-'(12)
(4) tan-'(4)​

Answer 1

Answer:

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