A projectile is fired with an initial speed of 113m/s at an angle of $60.0^{\large\circ}$ above the horizontal from the top of a cliff 49.0m high.Determine the total time it stays in the air,and horizontal range of the projectile.

Question

$\begin{array}{1 1}t = 20.5s, \quad \text{range} = 1156m\\t = 20.5s, \quad \text{range} = 97.9 m\\t = 10.25s, \quad \text{range} = 56.5 m\\t = 10.25s, \quad \text{range} = 1032m\end{array} $