A projective has initially the same horizonal velcoity as it would acquire if it had moved from rest with uniform accleration of 3ms^(-2)for 0.5 minutes. If the maximum heightreached by it is 80m then the angle of projection is[g=10ms^(-2)]

A projective has initially the same horizonal velcoity as it would acq

1.	A projective has initially the same horizonal velcoity as it would acquire if it had moved from rest with uniform accleration of 3ms^(-2)for 0.5 minutes. If the maximum heightreached by it is 80m then the angle of projection is[g=10ms^(-2)]
Answer» `TAN^(-1)(3)` `tan^(-1)(3/2)` `tan^(-1)(4/9)` `sin^(-1)(4/9)` Answer :C