A projectile of mass 0.756 kg is shot from a cannon, at height 7.1 m, as shown in the figure, with an initial velocity vi having a horizontal...

A projectile of mass 0.756 kg is shot froma cannon, at height 7.1 m, as shown in thefigure, with an initial velocity vi having a horizontal component of 4.6 m/s.The projectile rises to a maximum height of3.5 above the end of the cannon's barrel andstrikes the ground a horizontal distance xpast the end of the cannon's barrel.Find the work done by the gravitational force on the particle during its trajectory from the end of the cannon's barrel to its impact on the ground. Answer in units of J. Angle=61 degrees