Recent content by Physics quest

Well its complicated, the force 26.8 MN is the base requirement we estimated for the superhuman in question to indent a relatively large hand sized area of metal, which we think is iron (The area of the hand I calculated to be 80.7 inches square and the Iron hardness MPA at 260) and create a...

Your along the right track, it is fictional. Superhumans :wink:

Nothing much really, I just wanted some idea of how to find velocity from a given amount of information. I mean, its important that its just a quick strike, like a punch, a little research (30 mins on google so not much) lead to a paper/pdf that talks about actually measuring a boxers punch...

Cheers, I think I have got it. Thank you for the lesson sir! And have a good day :biggrin:

Cheers, I think I have a good idea with the equation, if I practice a bit, now I see where the numbers plug in. Also, 260 m/s is the acceleration over 1 second my calculator gave me divided by 10, or rather, 1/10th of a second, which makes sense to me. If we assume the contact was for 50 ms...

Thanks, at least I know its possible. I guess in my head I was thinking surely the object is going to be fastest immediately upon impact? I am curious, why is my calculator saying the acceleration is 2600 m/s, as in, without knowing distance what does that acceleration represent? Surely it...

Thank you for the quick response, and straight to the point! :biggrin: I see, would a good estimate for this be in the millisecond range, e.g. 100 milliseconds or maybe even less? A punch does not take very long. I see, like above, can this be estimated? I mean, how far does a 10 ton...

Hello folks, I was wondering how I could calculate/find the velocity of an object from an imparted force given its mass. My force is 26 MN, the object is 10 metric tons, or 10kKg, what will the objects velocity be if this force was applied to it rapidly, e.g. like a jab/punch. My goal is to...

Very cool! :biggrin: Thank you. And thank all for replies so far, if anyone has any more insight or does this sort of calculation for fun feel free to add to this. I have enjoyed learning a bit more about it, but as I thought, I am out of my depth personally with this sort of thing.

As i said previously its all theoretical, I never meant to imply I was applying this to the real world, not unless you have any spare cubic iron blocks lying about and a power hydraulic press or something for me to experiment with :wink: I guess I naively thought that this would be easier than...

Well looking at this source from the engineering tool box, if we take value "clean and dry", because that describes the cone and the block in my example, the coefficient between Steel and iron seems to be 0.4-0.5, brass, another material I was looking into is 0.5. So could the coefficient be...

I see, so can I estimate that, e.g. the friction coefficient between say, steel (if we assume the cone indenter has similar properties in that area) and Iron, Brass, another piece of steel etc? Really? So its not possible for my experiment to happen without the entire iron block shattering or...

Do you mind explaining what you mean by lubrication? Do you mean if its oiled or something? The Cone is dry, e.g. its not been treated in any way. Think of the cone of having similar properties to steel, only its not going to break from the impact for the sake of my interest being more on the...

Find how much force and energy it requires to make said indentation/hole. Its theoretical, not practical as I say, my only goal and interest is to find required Force and Joules of the operation. The "Cone" in this case does survive, hence why I made it indestructible for this question since...

I see, alas my penetrator as Baluncore rightly points out probably cannot be calculated as a ball, as the forces/pressures would be very different as I understand it? What would you say the closest diameter is that I could use for my 80 square inch area cone would be? or rather, if I wanted to...