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)Variables:
- veEscape velocity (m/s)Escape velocity (m/s)
- GGravitational constant (6.674×10⁻¹¹ N·m²/kg²)Gravitational constant (6.674×10⁻¹¹ N·m²/kg²)
- MPlanet mass (kg)Planet mass (kg)
- RPlanet radius (m)Planet radius (m)
How to Use
- 1
Input Massa Planet
Enter massa planet (kg).
- 2
Input Jari-jari
Enter jari-jari planet (m).
- 3
Calculate
Dapatkan kecepatan lepas in m/s and km/s.
Examples
Kecepatan Lepas Bumi
Problem:
M = 5.972×10²⁴ kg, R = 6.371×10⁶ m. Cari ve?
Solution:
- 1.ve = √(2 × 6.674×10⁻¹¹ × 5.972×10²⁴ / 6.371×10⁶)
- 2.ve ≈ 11,186 m/s
Result:≈ 11.2 km/s
Objek perlu kecepatan minimal 11.2 km/s for lepas from gravitasi Bumi.
Frequently Asked Questions
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.