Why is it easier to push a heavy box up a ramp than to lift it straight up?
The Ramp's Secret Deal
Why is it easier to push a heavy box up a ramp than to lift it straight up?
Here's a puzzle you've felt in your own arms. A heavy box that's almost impossible to lift straight up suddenly becomes shove-able the moment you point it up a ramp. Same box. Same gravity. So what's the ramp secretly doing for you?
First, let's be fair to gravity. Gravity is stubborn but simple. It pulls the box straight down with one steady amount of force, all day, no matter what you do. To lift the box, you have to win against that whole downward pull at once.
