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Vo = 40 m/s
α = 60º
V di titik tertinggi = __ ?
Komponen kecepatan arah sb-x
Vtx = Vox = Vo cos α
= 40 cos 60º
= 20 m/s
Komponen kecepatan arah sb-y di titik tertinggi
Vty = 0
Kecepatan di titik tertinggi
Vt = √(Vtx² + Vty²)
Vt = Vtx = 20 m/s ← jawaban