SERPSE$104\mathrm{.}3.$OP$\mathrm{.}010.$

A ball is tossed from an upper$-$story window of a building. The ball is given an initial velocity of $8\mathrm{.}30\frac{m}{s}$ at an angle of $22\mathrm{.}0$ below the horizontal. It strikes the ground $4\mathrm{.}00s$ later.

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

m

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

m

$($c$)$ How long does it take the ball to reach a point $10\mathrm{.}0m$ below the level of launching?