Question

Tolong, pakai caranya

Answer 1

Verified answer

GP

gerak horizontal: GLB
Vox = 30 m/s
Vtx = Vox = 30 m/s

gerak vertikal: GLBB
Vty² = Voy² + 2 g h
Vty² = 0 + 2 • 10 • 80
Vty² = 1600
Vty = ± √1600 = ± 40 m/s
yang memenuhi
Vty = - 40 m/s, karena bergerak ke bawah

Arah kecepatan saat t
tan αₜ = Vty / Vtx
tan αₜ = -40 / 30
αₜ = - 53° ← jwb
[kuadran IV]