Question $1(3$ points$)$

A ball is thrown with initial velocity $v_0$ at angle $$ to the horizontal axis, the horizontal component is $3\frac{m}{s}.$ 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 $.$

c$)$ The velocity $v_0.$

d$)$ The height of the building.