1. What is G-Force in Car Crashes?

Definition: G-force measures the acceleration experienced during a crash relative to Earth's gravity.

Purpose: It helps quantify the impact forces on vehicle occupants during collisions.

2. How Does the G-Force Calculator Work?

The calculator uses the formula:

Where:

• \( G \) — G-force (dimensionless)
• \( a \) — Acceleration during crash (m/s²)
• \( g \) — Acceleration due to gravity (9.81 m/s²)

Explanation: The crash acceleration is divided by Earth's gravity to express the force in multiples of gravity.

3. Importance of G-Force Calculation

Details: Understanding G-forces helps evaluate crash severity, design safer vehicles, and assess injury risks.

4. Using the Calculator

Tips: Enter the crash acceleration in m/s² and gravity (default 9.81 m/s²). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a survivable G-force in crashes?
A: Humans can typically survive 20-30G for very short durations (fractions of a second) in crashes.

Q2: How does G-force relate to injury risk?
A: Higher G-forces generally mean greater injury risk, but duration and direction of force also matter.

Q3: What's a typical G-force in a car crash?
A: Frontal crashes at 35 mph (56 km/h) typically produce 20-30G, while side impacts can be higher.

Q4: Why use Earth's gravity in the calculation?
A: It provides a standardized reference point that's familiar (1G = normal Earth gravity).

Q5: How do airbags affect G-forces?
A: Airbags reduce peak G-forces by extending the deceleration time during a crash.