Q) In the figure, a stone is projected at a cliff of height h with an initial speed of 46.0 m/s directed at an angle θ° = 50.0° above the horizontal. The stone strikes at A, 5.40 s after launching.
Find
(a) the height h of the cliff,
(b) the speed of the stone just before impact at A, and
( c) the maximum height H reached above the ground.