• _cryptagion [he/him]@anarchist.nexus
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    13 days ago

    moving away by any amount lessens the force of the blow. this is elementary level physics, and your arguing it really shows the sorry state of American education.

    • Cenzorrll@lemmy.world
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      13 days ago

      No, you’re flat out wrong, the bat is moving in a rotational motion and increasing in speed as it rotates because the wielder won’t be putting any stopping force until they are past the point they intend to strike. This rotational motion, where the farthest point from the fulcrum (shoulder) has the most force. Meaning if you are in range, the farther out you are, the harder you get hit. You must be able to get out of range in order for backing away to be effective, otherwise you get hit harder.

      You’re only correct if it’s thrown, and if you’re this close, it won’t make a difference.

      • _cryptagion [he/him]@anarchist.nexus
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        13 days ago

        So your argument is that since it’s increasing velocity, the force given from its momentum is increasing, but decreasing that momentum by robbing it of some velocity does not decrease the force.

        Does my summary of your argument sound correct to you?

          • _cryptagion [he/him]@anarchist.nexus
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            13 days ago

            the rest of the comment totally misrepresented what was happening here. the protestor isn’t backing away, they’re moving downwards. the officer isn’t swinging the baton, he’s punching straight downwards with it because he didn’t get a chance to swing.

            now that you are up to speed, try again.

            • Cenzorrll@lemmy.world
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              13 days ago

              In the one picture we have of the officer before contact is made, you’re saying they’re punching with the baton when it’s above their shoulder and to the side.

              • _cryptagion [he/him]@anarchist.nexus
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                13 days ago

                no, in the video of the protest, we see him punching downwards and not swinging. this happened in Chile in 2019. this is not the only angle of the fight either, there’s a video that’s close up within maybe 20 ft on the other side.

                he immediately got up and the protestor did basically the same thing to him again before running off as more cops arrived.

          • _cryptagion [he/him]@anarchist.nexus
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            12 days ago

            It didn’t. The video of the riot in question that I posted shows that. Which is probably why they haven’t replied to the thread since.

            But even if it did, a hook is also rotational force, and boxers still roll away from it to avoid or lessen the blow. I think if that was the wrong thing to do, they would have stopped doing it several decades ago.

        • Cethin@lemmy.zip
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          12 days ago

          Think about it as just a really long pole on a rotating shaft. The further you are away from the center of rotation the faster the pole is moving at that point. That’s why really long swords are more powerful (though harder to wield) than shorter ones, even if they’re the same mass. If you get hit by the tip of the sword it transfers a lot more energy than near the hilt.

          Another way to think about it is it hurts a lot more to get hit by the fist when someone punches than if you get really close and are only hit by their shoulder.

    • bufalo1973@europe.pub
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      12 days ago

      In this specific case it’s better to move in. Even better if the fist ends past your back.

    • 0x0@lemmy.zip
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      13 days ago

      By all means do try your “elementary physics” in real life, I beg you. Film it too if possible.
      Not american btw, nor easily offended if that was the point.

      • _cryptagion [he/him]@anarchist.nexus
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        13 days ago

        I don’t need to? boxing and MMA have existed for decades now, it’s been recorded likely thousands of times by now. see my reply to the other guy.

        it’s called impulse-momentum theorem. if you apply enough force to an object in motion over a long enough period of time, you reduce its momentum.

        if you had fast enough reflexes, you could stop a punch to the head without it harming you by moving away from it at nearly the speed it was approaching you. while no human can reliably do that, moving away from any blow reduces the force of that blow by an amount that is measurable.

        in boxing, they call it rolling with the punches. even if you are hit, rolling with a punch lessens the blow of that punch when it connects.

        • Cenzorrll@lemmy.world
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          13 days ago

          That isn’t how attacking with batons work. They come from the side because it’s rotational, not linear. If they’re stabbing at you, sure. But they aren’t.

              • _cryptagion [he/him]@anarchist.nexus
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                13 days ago

                what does that have to do with how is the baton being used here? is he unable to punch with it because you think the proper way for it to be used is a swinging motion? did you get elected the arbiter of how a baton is used or something? this is very amusing to me.

                for that matter, even if it was being swung, a hook is also rotational movement, with the force concentrated in the furthest point (the fist), and boxers still roll to avoid or lessen the force of it by moving perpendicular to the swing. I’m curious as to why you think some random person on Lemmy has a better grasp of the physics of a swing than, say, a winner of the Golden Gloves. do you figure you’re eloquent enough to argue many decades of practical evidence that contradicts you? I’m willing to listen to you try it.

    • BussyGyatt@feddit.org
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      13 days ago

      Call.

      show me the elementary school science experiment that demonstrates whatever unspecified physical principle you pointedly didn’t refer to

      • _cryptagion [he/him]@anarchist.nexus
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        13 days ago

        it’s 2025, and people on Lemmy are asking why stealing the velocity of an object over time reduces its momentum.

        I’m not going to waste my time explaining this to you. if you really are interested in impulse-momentum theorem, watch a video on how seatbelts, air bags, and crumple zones protect you when you get into a car accident.

        • Bronzebeard@lemmy.zip
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          12 days ago

          I’m routinely surprised by just how confidentiality wrong a lot of Lemmy users are about pretty basic things. Like at least on reddit, those people would get corrected and buried in most sane boards at least, but here there seems to be an abundance of those who just want to be incorrect about dumb shit

          • HugeNerd@lemmy.ca
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            11 days ago

            how confidentiality wrong a lot of Lemmy users are

            shh it’s a secret, he said confidently.

              • HugeNerd@lemmy.ca
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                11 days ago

                So you fundamentally misunderstand how the autocorrect works, because you blindly trust it.

                • Bronzebeard@lemmy.zip
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                  10 days ago

                  I was swipe typing and didn’t reread what I wrote. Because it wasn’t with the effort. You’re trying to read a lot more into this than there is. It’s kind of pathetic. Run along now

        • 0x0@lemmy.zip
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          13 days ago

          Wow, so many fancy words… how about angular momentum?
          And including the length of the baton and the radius of the trajectory?
          Is the impact stronger if hit near the base of the baton or its extremity?

          Please, get someone to hit you with one under these scenarios, you know, for science.

          • _cryptagion [he/him]@anarchist.nexus
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            13 days ago

            it’s OK to just admit you don’t know and were wrong. it doesn’t make you less of a person. this comment didn’t even argue anything, you’re just dragging the conversation out because you don’t have a good response, but want to get the last word in.

      • guy@piefed.social
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        13 days ago

        So if an object in motion with the force of 1 newton hits an object at rest that’s 1 newton of force applied, yes? Now if the object instead hits an object also in motion with 0.5 newton, will the first object hit it with 1 or 0.5 newton?

        • BussyGyatt@feddit.org
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          12 days ago

          I asked for the experiment or the name of the physical principle. edit: because he specifically said they teach this in elementary school… I didn’t just pull that out of a hat… also they don’t teach impulse-momentum theory in elementary school…

          • _cryptagion [he/him]@anarchist.nexus
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            13 days ago

            since you’re just asking questions, it’s called impulse-momentum theorem. if you apply enough force to an object in motion over a long enough period of time, you reduce its momentum.

            if you had fast enough reflexes, you could stop a punch to the head without it harming you by moving away from it at nearly the speed it was approaching you. while no human can reliably do that, moving away from any blow reduces the force of that blow by an amount that is measurable.

            this is why funding education is so important, people. this is a simple concept that anyone should understand.

            • BussyGyatt@feddit.org
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              13 days ago

              I’m not just asking questions I’m trying to show your claim to be false by insisting you explain yourself fully. Now that you’ve explained yourself I can explain how you’re wrong which I couldn’t do when you were arguing by insult and implication.

              Your claim is dependent on a linear force application when in fact the picture makes it clear the relevant force is rotational. Higher forces occur at the tip of a swinging bat.

              • _cryptagion [he/him]@anarchist.nexus
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                13 days ago

                Well one, the baton wasn’t being swung, it was being brought down, and two, the protestor was moving away from the direction of the tip and towards the ground.

                • BussyGyatt@feddit.org
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                  13 days ago

                  Oh. The baton being brought down on the guy wasn’t being swung. That’s what it is. Must just be my lying fucking eyes and personal experience with swinging things overhand ig.

                  Hey, just asking questions now, are you a product of the american education system?

                  • _cryptagion [he/him]@anarchist.nexus
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                    13 days ago

                    your argument was that mine was wrong because the baton is being swung with rotational force instead of linear force. the baton was brought straight downwards. is that rotational energy, or linear?

                    regardless, you would be wrong anyway, because hooks are rotational and boxers still move away from them to lessen their force. I’m going to accept the decades of practical experience they have over the opinions on how physics works from some random person on Lemmy.

          • guy@piefed.social
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            13 days ago

            Yeah and that was not the answer you got but an example. Do you follow why the baton would not hit as hard if you moved away? 😄

            • BussyGyatt@feddit.org
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              13 days ago

              No. It isn’t obvious to me. In fact, I can see how at a particular sweetspot of moving away from the striking baton could concentrate the force in a smaller area leading to a “harder” blow. Perhaps you could explain it to me since I apparently was sick that day in elementary school.

              edit: strikethrough. when I wrote this I thought the confusion was the common elementary school misunderstanding of the difference between the “force” and “hardness” of a blow, which did not turn out to be the case and this was just a non-sequitur.

              • Norah (pup/it/she)@lemmy.blahaj.zone
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                13 days ago

                It’s the exact same reason that hitting a parked car is a lot less bad than hitting a car going at the same speed in the opposite direction. Or why hitting the brakes when someone’s about to rear-end you is a bad idea.

              • guy@piefed.social
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                13 days ago

                Ok, so if you run into someone standing still, that will hurt a lot, right?
                Now, if you run into someone else also running who is just a bit slower than you, that doesn’t hurt as much.

                It’s the same reason boxers “roll with the punch”. If a strike comes to the face they will move their head to negate/lessen the impact

                • Bronzebeard@lemmy.zip
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                  12 days ago

                  You’re assuming velocity remains constant. If you can run into the person who is also moving BEFORE THEY GET UP TO FULL SPEED, it hurts less than of you allow them room to get up to full speed.

                  • guy@piefed.social
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                    12 days ago

                    Sure, but that wasn’t what the first commenter said. Moving away would lessen the force visavi standing still. Now if it’s better to move in or away is another question.

                • 0x0@lemmy.zip
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                  13 days ago

                  That’s a flawed analogy as people tend to run horizontally.

                  For that to “work” you’d have to move (faster) in the same direction of the baton – meaning downwards towards the ground. Realistically you’d end up on the ground, crouching, and still within reach of a blow. It could kinda work if the trajectory is diagonal 'cos you’d roll away but you’d still be in an awkward position to avoid a blow.

                  • guy@piefed.social
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                    13 days ago

                    Well, he asked how it worked, and that’s how physics work. Doesn’t matter if it horisontal, diagonal or vertical

                    Oh, and the first commenter just mentioned moving away