1. What is a Car Crash Force Calculator?

Definition: This calculator estimates the impact force during a car collision based on vehicle mass, velocity change, and collision duration.

Purpose: It helps safety engineers, accident investigators, and physics students understand collision dynamics and safety implications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( F \) — Impact force (Newtons)
• \( m \) — Vehicle mass (kilograms)
• \( \Delta v \) — Change in velocity (meters/second)
• \( \Delta t \) — Collision duration (seconds)

Explanation: The force is calculated by multiplying mass by velocity change, then dividing by the time over which the collision occurs.

3. Importance of Impact Force Calculation

Details: Understanding impact forces helps design safer vehicles, evaluate crash test results, and understand injury mechanisms.

4. Using the Calculator

Tips: Enter the vehicle mass in kg, velocity change in m/s (speed difference before and after collision), and collision duration in seconds.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical collision duration?
A: Most car crashes last between 0.1 to 0.2 seconds, with crumple zones designed to extend this time and reduce forces.

Q2: How does velocity change relate to crash severity?
A: The greater the velocity change (especially sudden deceleration), the higher the impact forces on occupants.

Q3: Why is mass important in crash calculations?
A: Heavier vehicles experience greater impact forces for the same velocity change, but may have more structural strength.

Q4: How does this relate to G-forces?
A: G-force can be calculated by dividing the impact force by the vehicle's weight (mass × 9.81 m/s²).

Q5: What's a survivable impact force?
A: Humans can typically withstand about 50Gs for milliseconds or 20Gs for seconds, but injury risk depends on many factors.