Fisika

Pertanyaan

Tolong di bantu beserta caranya
Tolong di bantu beserta caranya

1 Jawaban

  • Kinematika
    - Gerak Parabola

    V₀ = 20 m/s
    α = 37° ↣ sin α = ⅗ ↣ cos α = ⅘
    g = 10 m/s²
    y = - 32 m


    y = V₀ sin α t - ½ g t²
    -32 = (20)(⅗) t - (½)(10) t²
    5t² - 12t - 32 = 0
    (t - 4)(5t + 8) = 0
    t = 4 atau t = -8/5 (ditolak)

    x = V₀ cos α t
    x = (20 m/s)(⅘)(4)
    x = 64 m