A projectile of mass 0.413 kg is shot from a cannon, at height 6.8 m, with an initial velocity vi having a horizontal component of 7.5m/s.
The projectile rises to a maximum height of ?y above the end of the cannon's barrel and strikes the ground a horizontal distance ?x past the end of the cannon's barrel.
Determine the maximum height the projectile achieves after leaving the end of the cannon's barrel.