What is a challenging u tube physics problem that you have encountered and how did you solve it?

One challenging YouTube physics problem I encountered involved calculating the trajectory of a projectile launched at an angle with a given initial velocity. To solve it, I used the kinematic equations for projectile motion and applied trigonometry to break down the initial velocity into horizontal and vertical components. By analyzing the forces acting on the projectile and considering factors like air resistance, I was able to accurately predict the projectile's path.