A body projected vertically upwards, reaches a height of 180 m. Find out `[g=10ms^(-2)]` Find initial velocity of body

Answer

(i)`60m//s`
(ii) 6 sec
(iii) 12 sec
(iv )160 m
(v)`-20m//s`
(vi) 2 sec, 10 sec
(vii) 6 sec