$3.$ A ball is tossed from an upper$-$story window of a building. The ball is given an initial

velocity of vi $=7\mathrm{.}7$ m$/$s at an angle of $16$o below the horizontal. It strikes the ground $6$ s later.

a$)$ How far horizontally from the base of the building does the ball strike the ground?

b$)$ Find the height from which the ball was thrown.

c$)$ How long does it take the ball to reach a point $10$ m below the level of throwing