A ball is thrown with initial velocity Vo at angle to the horizontal axis, the horizontal component is 3 m/s. If it barely passed over a building of 18 m wide (just passed without touching the edges of the building as in the diagram below).
Find;
a) The horizontal distance if the total time of the ball on air was 8 s.
b) The angle 8.
c) The velocity Vo.
d) The height of the building.