Q$1.($a$)$ A ball is thrown from point $A$ of a building with an angle of $30$ and initial

velocity of $V_A$ as shown in Figure Q$1($a$).$ The ball strikes the ground at point $B.$

Neglect the atmospheric resistance and any change in gravity. Determine:

$($i$)$ the time of flight.

$($ii$)$ the initial velocity, $V_A.$

$($iii$)$ the ball's velocity when it strikes the ground at point $B.$

Figure Q$1($a$)$help