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t: 2s
α: 90 deratas (vertikal)
g: 10 (bisa juga 9,8.. saya ambil 10 biar mudah)
Vakhir?
Vx = Vo Cos 90
Vx = 8 . 0
Vx = 0
Vy = Voy + gt
Vy = 8. Sin 90 + 10.2
Vy = 8.1 + 20
Vy = 28
V = √Vx² + Vy²
V = √0² + 28²
V = √0 + 784
V = √784
Vakhir = 28
Jarak terjauh (R) ?
R = Vo²/g x Sin 2α
R = 8²/10 x Sin 2 x 90
R = 64/10 x Sin 180
R = 64/10 x 1
R = 6,4
maaf kalo salah :)