“Dropping a penny from the Empire State Building could kill someone”

The notion that a small coin dropped from a towering skyscraper, like the Empire State Building, could become a deadly projectile is a persistent urban legend. This misconception likely stems from a general intuition that anything falling from a great height will accelerate indefinitely, gaining tremendous destructive power. The sheer scale of such a fall, combined with dramatic depictions in fiction, contributes to the belief that gravity's pull would render even a lightweight object lethal upon impact.

However, the laws of physics tell a different story. As an object falls through the air, it encounters air resistance, a force that opposes its motion. For a penny, which is relatively light and has a flat surface area, this resistance quickly balances the force of gravity. When these forces become equal, the penny stops accelerating and reaches what is known as terminal velocity. This maximum speed for a falling penny is surprisingly slow, typically between 30 and 50 miles per hour, depending on factors like its orientation and the air density.

At this speed, a penny's impact would be more akin to a hard flick or a strong raindrop than a bullet. While it might sting or cause a minor bruise, it simply doesn't possess enough kinetic energy to penetrate skin or cause serious injury, let alone be fatal. People commonly believe the myth because our everyday experience often doesn't account for the significant role of air resistance, especially over extreme distances, leading us to overestimate the destructive potential of small, falling objects.