• iopq@lemmy.world
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    6 months ago

    This isn’t true, if they can stop at an impossibly fast speed, why can’t you? Let’s say they stop in 3 seconds, that means their brakes can get them from 65 to 0 in 3 seconds. If you’re 2 seconds behind them, you have 5 seconds to stop. If you react within 2 seconds, you should be able to stop in 3 seconds. The only reason you would not be able to, is if you didn’t do maintenance on your brakes,

    There’s almost no person in the world who can’t react in 2 seconds.

    • scutiger@lemmy.world
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      6 months ago

      What if they slam into a truck at highway speeds? Instantly they’ve gone ftom 100km/h to 0, and you have to stop your car before you slam into them. How much space do you need between you in this scenario?

      With 2 seconds worth of space, you have about 55 meters between you, and a normal reaction time would be about 250ms, which leaves you 1.75 seconds and 48 meters to come to a complete stop. And hopefully the person behind you reacts accordingly and doesn’t slam into you as well.

      • LordKitsuna@lemmy.world
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        6 months ago

        This is the answer, and is exactly what happens when you see those accidents involving like 6 Plus cars. Too many people riding way too close together at high speeds and none of them were able to stop in time when the first car suddenly stopped