we can make a triangle
It is a right triangle, to fnd h we can use trigonmetric ratios, for example sine

where alpha is the reference angle, O the opposite side from the angle and H the hypotenuse
using 75° as reference angle we can replace

and solve for h
![\begin{gathered} h=60\sin (75) \\ h=15(\sqrt[]{6}+\sqrt[]{2})\approx58 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/no6gv4ml8691t0gp946tlapdvr3ebphbml.png)
maximum height is 58ft