05/09/2026
🏢 Can you measure the height of a building with just a STONE and a STOPWATCH? 🪨⏱️
Yes — Physics can do it! 🤯
Drop a stone from the top and measure the time it takes to reach the ground.
Using gravity:
📐 Height = ½ × g × t²
where
🌍 g = 9.8 m/s²
⏱️ t = falling time
For example, if the stone takes 2 seconds:
Height = ½ × 9.8 × 2²
= 19.6 metres!
But here’s the interesting part 👇
If the falling time becomes 2×, the distance becomes 4×.
If the time becomes 3×, the distance becomes 9×.
Why? Because gravity is continuously accelerating the stone.
That little t² has a BIG meaning! 🧠⚡
Save this reel — the next time you see a tall building, you’ll look at it differently. 😄
⚠️ Concept demonstration only. Never drop objects from a building where they could hit people or property.