Solution,
Using 3rd equation of motion,
V^2 = u^2 + 2ah
0 = u^2 + 2 (-9.8) 500
u = 99 ft/s
For compensation,
g sin(alpha) = 0.5
Alpha = 2.92 degree
Maximum height,
0 = 99^2 - 2 x 9.8 x cos(2.92) x h
Height, h = 500.7 ft
Comment in case any doubt please rate my answer.....
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