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- gerak parabola
Vo = 100 m/s
α = ___ ?
Xm = 500√3 m
g = 10 m/s²
Jarak terjauh
Xm = Vo² sin 2α / g
500√3 = 100² sin 2α / 10
5000√3 = 10000 sin 2α
sin 2α = ¹/₂√3
2α = 60°
α = 30° ← jawaban
sudut elevasi penembakan 30°