in the derivation of the first trajecotry
you haven't squared Cos θ
and \tan^{-1} 4/5 is not 78.6 . it has to less than 45
the book says ans to part (b)is unanswerable but i am getting an answer
in the derivation of the first trajecotry
you haven't squared Cos θ
and \tan^{-1} 4/5 is not 78.6 . it has to less than 45