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Vo = 10 m/s
α = 30º
g = 10 m/s²
t = 2 s ⇒ Vt = __ ?
Komponen x: GLB
Vtx = Vox
= Vo cos α
= 10 · cos 30º
= 10 · ½√3
= 5√3 m/s
Komponen y: GLBB
Vty = Voy - g t
= Vo sin α - g t
= 10 · sin 30º - 10 · 2
= 10 · ½ - 20
= -15 m/s
Kecepatan saat t = 2 s
Vt = √(Vtx² + Vty²)
= √[ (5√3)² + (-15)²]
= √[ 75 + 225]
= √300 = 10√3 m/s ← jawaban