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Vx = 300 m/s
Y = 8000 m
g = 10 m/s²
Vt = __ ?
X = __ ?
waktu jatuh
Y = ½ g t²
8000 = 5 t²
t = 40 s
jarak horizontal
X = Vx · t
= 300 · 40 = 12000 m ←
Kecepatan tiba di tanah
Vtx = Vx = 300 m/s
Vty = - g t = - 10 · 40 = - 400 m/s
Vt = 500 m/s ← jwb karena 3, 4, 5 mrp tripel Pythagoras