Eli5: Why does time matter in physics?

1.04K views

If I drive my car through a corner slowly I’ll be fine. If I go fast, the car will skid off the road. All the materials are the same, the execution is the same. The only difference is over what amount of time this happens? The example is not important, the same goes for pretty much anything. Filling a bottle, ripping a sheet of paper..

I understand this from a intuitive perspective, but I wonder if someone can explain why time matters in physics in a simple way. What is the fundamental difference between doing something fast vs. slow.

I’m sure this is a silly question if you know some thermal dynamics or special relativity, but remember, I’m only 5!

In: Physics

20 Answers

Anonymous 0 Comments

Because while the materials and execution are the same, the forces aren’t.

For example, a car turning a corner at 50mph has a lot more energy and inertia than a car turning at 5mph, and that a lot more energy to overcome the friction of the tires if you want the car to change direction.

You are viewing 1 out of 20 answers, click here to view all answers.