Acceleration measures how quickly velocity changes. The standard unit is m/s². In everyday life, we experience it as g-force.
Standard Gravity
Standard gravity (g₀) = 9.80665 m/s² exactly. This is the reference for all g-force measurements.
Key Conversions
- 1 g = 9.80665 m/s² = 32.174 ft/s²
- 1 m/s² = 0.10197 g
Real-World Examples
Car 0–100 km/h in 10 s ≈ 2.78 m/s² (0.28 g). Roller coasters: 3–5 g. Fighter pilots: up to 9 g.
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Frequently Asked Questions
What is 1 g-force in m/s²?
1 g = 9.80665 m/s² exactly — standard gravitational acceleration at sea level.
How many g's does a car brake at?
Typical braking: 0.5–0.8 g. Performance cars: up to 1.0 g with high-grip tires.