Forum reserved for discussing specific points of the story—mostly from the manga. Be warned, these discussions will be current with the manga and will spoil many plot lines for anime-centric fans.
Why are you saying the mass? It only increases the impulse. And I agree, Yukiko has been doing that since forever. The only reason why we weren't a 100% sure that was Yukiko was because it was too obvious.
Spoiler:
I said mass must have increased because I don't think it is humanly possible to kick a tennis ball with enough v to achieve the kinetic energy (0.5mv2) that was apparently transferred to Hades' face. His face was completely distorted and he was knocked senseless for an extended period of time. I understand getting stunned briefly, but drooling knocked out with a tennis ball? It would require inhuman speeds because a tennis ball is a light object and highly distortable (more than a baseball or golf ball) which spreads the impact energy over a greater amount of time/distance.
Also, how did Minerva win the match after deliberately attacking a spectator? Aren't there disqualification rules? They just hauled Hades off when Minerva won, so how would the judges know Minerva was acting to save someone's life? Would the police tell the judges something like that?
Spoiler:
You are forgetting about momentum. Furthermore. It starts as a Tennis Ball of mass (m)
That Ball in then hit by Minerva Racket. Let say her force is F and the the velocity v1 make the first momentum P1=mV1 this is all before Conans kIck which ADDS momentum to the Ball meaning while the first momentum was mV1, the New momentum is the first one mv1 Plus the second mV2 where V2 is the velocity Conan's Kick would give it with out the Serve's momentum. Since momentum is conserved, That means the Bad guy gets hit with both momentums or mV! +mV2 and since all this force is coming at a bad guy at rest, it must hit the bad with not only the force of the Very fast moving tennis ball but it full momentum as well.
Please, can't we just talk about the London Case? With all respect, I don't wanna read debate about physics laws or stuffs. There are already forums for that, not in DCTP.
Spoiler:
However, yeah, the resolution of this case is not complete yet. I hope in 753 there will be more explanation. I'm just hoping they would really go to France, even though it would be kinda improbable... And they just left Diana like that???
sstimson wrote:
You are forgetting about momentum. Furthermore. It starts as a Tennis Ball of mass (m)
That Ball in then hit by Minerva Racket. Let say her force is F and the the velocity v1 make the first momentum P1=mV1 this is all before Conans kIck which ADDS momentum to the Ball meaning while the first momentum was mV1, the New momentum is the first one mv1 Plus the second mV2 where V2 is the velocity Conan's Kick would give it with out the Serve's momentum. Since momentum is conserved, That means the Bad guy gets hit with both momentums or mV! +mV2 and since all this force is coming at a bad guy at rest, it must hit the bad with not only the force of the Very fast moving tennis ball but it full momentum as well.
Your assertion that Minerva's serve had much momentum when Conan kicked it is wrong. It was limply bouncing on the ground when Conan kicked it if you check the actual manga. I could use kinetic energy or momentum to find the force of impact if I made some assumptions about the impact parameters, but as I said previously, the tennis ball doesn't have much mass, and due to its flexible air filled construction will deform greatly during the impact which increases the duration of the impact which therefore drops the force being delivered. Also, I cross checked my hypothesis that even professional servers don't knock people out with tennis balls by looking for news and videos of people getting hit. Basically people get stunned, but they can still move and react to the pain. They don't become drooling-on-themselves knocked out.
Last edited by Chekhov MacGuffin on October 16th, 2010, 9:43 pm, edited 1 time in total.
You are forgetting about momentum. Furthermore. It starts as a Tennis Ball of mass (m)
That Ball in then hit by Minerva Racket. Let say her force is F and the the velocity v1 make the first momentum P1=mV1 this is all before Conans kIck which ADDS momentum to the Ball meaning while the first momentum was mV1, the New momentum is the first one mv1 Plus the second mV2 where V2 is the velocity Conan's Kick would give it with out the Serve's momentum. Since momentum is conserved, That means the Bad guy gets hit with both momentums or mV! +mV2 and since all this force is coming at a bad guy at rest, it must hit the bad with not only the force of the Very fast moving tennis ball but it full momentum as well.
Spoiler:
Your assertion that Minerva's serve had much momentum when Conan kicked it is wrong. It was limply bouncing on the ground when Conan kicked it if you check the actual manga. I could use kinetic energy or momentum to find the force of impact if I made some assumptions about the impact parameters, but as I said previously, the tennis ball doesn't have much mass, and due to its flexible air filled construction will deform greatly during the impact which increases the duration of the impact which therefore drops the force being delivered. Also, I cross checked my hypothesis that even professional servers don't knock people out with tennis balls by looking for news and videos of people getting hit. Basically people get stunned, but they can still move and react to the pain. They don't become drooling-on-themselves knocked out.
Wow. And suddenly the physics course I'm taking seems ten times more interesting.
You are forgetting about momentum. Furthermore. It starts as a Tennis Ball of mass (m)
That Ball in then hit by Minerva Racket. Let say her force is F and the the velocity v1 make the first momentum P1=mV1 this is all before Conans kIck which ADDS momentum to the Ball meaning while the first momentum was mV1, the New momentum is the first one mv1 Plus the second mV2 where V2 is the velocity Conan's Kick would give it with out the Serve's momentum. Since momentum is conserved, That means the Bad guy gets hit with both momentums or mV! +mV2 and since all this force is coming at a bad guy at rest, it must hit the bad with not only the force of the Very fast moving tennis ball but it full momentum as well.
Spoiler:
Your assertion that Minerva's serve had much momentum when Conan kicked it is wrong. It was limply bouncing on the ground when Conan kicked it if you check the actual manga. I could use kinetic energy or momentum to find the force of impact if I made some assumptions about the impact parameters, but as I said previously, the tennis ball doesn't have much mass, and due to its flexible air filled construction will deform greatly during the impact which increases the duration of the impact which therefore drops the force being delivered. Also, I cross checked my hypothesis that even professional servers don't knock people out with tennis balls by looking for news and videos of people getting hit. Basically people get stunned, but they can still move and react to the pain. They don't become drooling-on-themselves knocked out.
Wow. And suddenly the physics course I'm taking seems ten times more interesting.
can we not talk about physics? and talk about actuall chapter?
xpon wrote:
Almost all police is Detective Conan is less importance than the Detectives.....
1st Doctor: One day I shall come back, yes I shall come back. Till then there shall be no fears, no tears and no anxieties, just go forward in your beliefs and prove to me I am not mistaken in mine. Good bye Susan. Good bye my Dear.
well actually the physics is kinda related to the case and darn I wish I hadn't looked in the spoiler boxes now. i hope something more will happen after this file then!! (and i think there will be more, since the mystery of Diana Kingston hasn't been resolved?)
"Shh! Celebrate after the curtain of this bloody stage closes."
Calling it now: Chekhov will post something like "water is wet" and sstimson will have an argument explaining how in some circumstances water is not wet...
Then Chekhov will say, "I am alive right now" and sstimson will say, "But actually you are not alive, because..."
Anyway about the file:
Spoiler:
...So, like, Saturn really only meant Saturday? :(
And we don't get to find out who Diana is because Kogorou doesn't want to know? :(
Abs. be a sad panda. However overall pretty pleased with the case, don't get me wrong!
Your assertion that Minerva's serve had much momentum when Conan kicked it is wrong. It was limply bouncing on the ground when Conan kicked it if you check the actual manga. I could use kinetic energy or momentum to find the force of impact if I made some assumptions about the impact parameters, but as I said previously, the tennis ball doesn't have much mass, and due to its flexible air filled construction will deform greatly during the impact which increases the duration of the impact which therefore drops the force being delivered. Also, I cross checked my hypothesis that even professional servers don't knock people out with tennis balls by looking for news and videos of people getting hit. Basically people get stunned, but they can still move and react to the pain. They don't become drooling-on-themselves knocked out.
Spoiler:
Looking at the actual file, it seems as though he got knocked out because the ball hit him in the neck with that force, not the head. Of course, the next panel seems to show it was his cheek, so who knows.
Abs. wrote:
Calling it now: Chekhov will post something like "water is wet" and sstimson will have an argument explaining how in some circumstances water is not wet...
GinRei wrote:
Looking at the actual file, it seems as though he got knocked out because the ball hit him in the neck with that force, not the head. Of course, the next panel seems to show it was his cheek, so who knows.[/spoiler]
Looked more like a jawshot to me based on the indent in his face in the top right panel.
GinRei wrote:
Perhaps, but my preferred angle would make the scene actually make sense.
The jaw is a good place to land punches leading to KOs in boxing if I remember correctly. Someone with more knowledge in that arena would have to confirm. I am still somewhat skeptical a tennis ball to the jaw could result in a drooling unconscious knockout vs stunning assuming Conan can't kick it faster than a professional server can serve.
Last edited by Chekhov MacGuffin on October 16th, 2010, 9:44 pm, edited 1 time in total.
Please, can't we just talk about the London Case? With all respect, I don't wanna read debate about physics laws or stuffs. There are already forums for that, not in DCTP.
and darn I wish I hadn't looked in the spoiler boxes now. i hope something more will happen after this file then!! (and i think there will be more, since the mystery of Diana Kingston hasn't been resolved?)
