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Escape Velocity Calculator

Calculate the minimum velocity needed for an object to escape a planet's gravitational field without further propulsion. Physics calculator for astronomy, astrophysics, and space science students. Supports any celestial body with known mass and radius including Earth, Moon, Mars, and Jupiter.

Escape Velocity

ve = √(2GM/R)

Keterangan:

  • ve
    Escape velocity (m/s)
  • G
    Gravitational constant (6.674×10⁻¹¹ N·m²/kg²)
  • M
    Planet mass (kg)
  • R
    Planet radius (m)

How to Use

  1. 1

    Input Massa Planet

    Enter massa planet (kg).

  2. 2

    Input Jari-jari

    Enter jari-jari planet (m).

  3. 3

    Calculate

    Dapatkan kecepatan lepas in m/s and km/s.

Contoh Perhitungan

Kecepatan Lepas Bumi

Soal:

M = 5.972×10²⁴ kg, R = 6.371×10⁶ m. Cari ve?

Penyelesaian:
  1. 1.ve = √(2 × 6.674×10⁻¹¹ × 5.972×10²⁴ / 6.371×10⁶)
  2. 2.ve ≈ 11,186 m/s
Hasil:≈ 11.2 km/s

Objek perlu kecepatan minimal 11.2 km/s for lepas from gravitasi Bumi.

Pertanyaan yang Sering Diajukan (FAQ)

Apa yang terjadi jika kurang from ve?
Objek will jatuh kembali ke permukaan or mengorbit planet.
How with atmosfer?
Formula ini mengabaikan hambatan udara, jadi hanya berlaku di luar atmosfer.

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Referensi