✈️ Jet Takeoff Physics Simulator – Interactive Post

This simulation models the takeoff of a jumbo jet using basic physics equations. When you click the button, it calculates the required acceleration and time to take off from a 1.8 km runway at a final speed of 360 km/h. It also displays how the velocity and position change during takeoff.

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🧠 JavaScript Code Used in This Simulation

// Unit conversion functions
const kmphToMps = kmph => (kmph * 1000) / 3600;
const kmToM = km => km * 1000;

// Jet and motion parameters
const jet = "Jumbo";
const initialVel = 0;
const finalVelKmph = 360;
const runwayLenKm = 1.8;

// Convert to SI units
const finalVelMps = kmphToMps(finalVelKmph);
const runwayLenM = kmToM(runwayLenKm);

// Calculate acceleration and time to take off
const acc = (finalVelMps ** 2) / (2 * runwayLenM); // a = v^2 / 2s
const timeTaken = finalVelMps / acc;               // t = v / a

// Smart step generation
const timeInt = Math.floor(timeTaken);
const timeSteps = (timeInt % 2 === 0) ? timeInt / 4 : timeInt / 3;
const stepLength = timeInt / timeSteps;

// Function to calculate position
const position = (a, t) => 0.5 * a * t ** 2;

// Loop to display values at intervals
for (let i = 0; i <= timeSteps; i++) {
  const t = stepLength * i;
  const v = acc * t;
  const s = position(acc, t);
  console.log(`${t.toFixed(1)}s | ${v.toFixed(2)} m/s | ${s.toFixed(2)} m`);
}