Eli5: Why does time matter in physics?

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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

Your larger question about time in general is rather complicated but I’ll focus on the specific situation you mention. Basically when you go faster you are or have added more energy to create higher momentum ,which is mass and velocity moving in a direction. Objects tend to move in straight lines so it takes more work and friction etc to prevent that mass continuing in a straight line than if you had added less energy. ( I hope)

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