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Script

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<!DOCTYPE html>
<html>
<head>
  <title>Projectile Motion Simulation</title>
</head>
<body style="text-align:center; font-family:Arial;">

<h2>Projectile Motion Simulation</h2>

Angle: <input type="range" id="angle" min="10" max="80" value="45">
<span id="angleVal">45</span>°<br><br>

Speed: <input type="range" id="speed" min="10" max="100" value="50">
<span id="speedVal">50</span> m/s<br><br>

<button onclick="simulate()">Launch 🚀</button>

<canvas id="canvas" width="500" height="300" style="border:1px solid black;"></canvas>

<script>
let angle = document.getElementById("angle");
let speed = document.getElementById("speed");

angle.oninput = () => document.getElementById("angleVal").innerText = angle.value;
speed.oninput = () => document.getElementById("speedVal").innerText = speed.value;

function simulate() {
  let canvas = document.getElementById("canvas");
  let ctx = canvas.getContext("2d");
  ctx.clearRect(0, 0, canvas.width, canvas.height);

  let g = 9.8;
  let v = speed.value;
  let a = angle.value * Math.PI / 180;

  let t = 0;
  let x, y;

  function draw() {
    x = v * Math.cos(a) * t;
    y = v * Math.sin(a) * t - 0.5 * g * t * t;

    if (y < 0) return;

    ctx.fillRect(x, 300 - y, 3, 3);

    t += 0.1;
    requestAnimationFrame(draw);
  }

  draw();
}
</script>

</body>
</html>

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2KB

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141.0ms

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142.0ms

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