🚀 Escape Velocity Lab
Visualize how gravity's grip differs across planets — and test your understanding
Planet
Earth
Escape v
11.2
km/s
Surface g
9.8
m/s²
Rel. speed
1.00
×
🏃 Earth: normal
Escape Velocity Formula
vₑ = √(2GM / r)
G
= 6.674 × 10⁻¹¹ N·m²/kg²
M
= planet mass (kg)
r
= planet radius (m)
vₑ
= minimum launch speed to escape gravity permanently
Key insight:
Higher mass → higher vₑ. Larger radius → lower vₑ. The Moon escapes easily; Jupiter demands 59.5 km/s!
Planetary Data
Body
vₑ (km/s)
g (m/s²)
vs Earth
🧪 Escape Velocity Quiz
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