Exactly 3.0s after a projecttile is fired into the air from a flat grround, it is observed to have velocity v=(8.6i+4.8j) ms-1, where x is the horizontal and y axis is positive upward. Dertermine
(a) The horizontal angle of projectile.
(b) Its maximum height above the ground, and
(c) It`s speed and angle of motion just before it strikes the ground.