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#1
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Re: What is your team up to at your hotel?
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67.13 Newtons. That is (assuming I remember correctly) four times the force of a golfball dropped from one meter. So yeah. It'd hurt. Because golf balls dropped from one meter hurt. But this would hurt more. EDIT: Whoops! For some reason 40 * 4 = 60 in my brain but basically it's a lot of force. And would hurt. Even if you take off the 2m or so from the height (assuming it hits a 2m tall person on top of the head) it's still going to hurt. edit: that's 2.7m/s, or .1mph. edit (yes again): It will take 52 seconds to hit the ground, too. edit (whee): I did some more math here's the full thing: "A bouncyball dropped from the top of the atrium at the Mariott Marquis, assuming it weighs .05kg, Will hit the ground with a force of 67.13N. The ball falls at a speed of 2.78m/s and will take 52 seconds to hit the ground. Assuming optimal conditions, that's going to be a 132m rebound at 90% effeciency. The ball, dropped from the 47th floor, will get back up to the 42nd floor." Last edited by Otaku : 12-09-2007 at 22:55. |
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#2
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Re: What is your team up to at your hotel?
...My cousin used to borrow my N64 for Latin trips when he was in high school and I was like 10. Now I understand why... Anyways we played Halo at one of the guys' rooms. It was actually kind of fun. But I'm not a big X-box guy... But at the IRI one of the people brought a Wii and we had a little Wii Party... Unfortunately there were only 2 controllers, but it was still fun!
DK, SSB, ...(on 64) > Wii > PS/Xbox Pavan. |
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#3
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Re: What is your team up to at your hotel?
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Acceleration of the ball would be 9.8 m/s/s. I've never been there.... so 47 floors I'm assuming is 705 ft (15*47), which is ~215 m. So, integrating the velocity shows that it hits 215m at 6.6 seconds. I'm betting my guesstimation of height is off... but it's a closer approximation of time at least. I'm too tired to finish.... I'll let Otaku take over from here and come up with the energy; goodnight everyone. EDIT: forgot terminal velocity. It hits 54m/s after 5.5s and has traveled 148m, leaving 67 to go. So add 67m / 54m/s and you get a total of 6.75 s at 54m/s (my old calc, physics and chem teachers would kill me for all the approximations and random rounding). Last edited by AdamHeard : 13-09-2007 at 03:58. |
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#4
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Re: What is your team up to at your hotel?
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I'll dig up my freshman science notebooks and look up the formulas. Also, I didn't take into account wind resistance because I do my physics calculations in happy go lucky fun time physics land. Where resistance is nonexistant. |
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#5
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Re: What is your team up to at your hotel?
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I don't need to calculate the energy on that, I know it's gonna hurt ![]() EDIT: Gotta agree with ya about resistance..... World would be so much easier if we just forgot about that ![]() |
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#6
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Re: What is your team up to at your hotel?
My original calculation wasn't off, I got 67N last time, 72N this time.
AdamHeard, care to share how you did your calculations? Brushing up wouldn't be a bad idea. |
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#7
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Re: What is your team up to at your hotel?
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I integrated the acceleration of 9.8m/s/s to get a velocity as 9.8(x) m/s. I then graphed the integral of that (position) and just saw where it intersected a horizontal line that was the distance traveled. That gave the time to travel that distance; From there the speed was as easy as putting that time into the velocity equation above. It's all really basic calculus. So, if you haven't taken it yet, don't worry; you'll get it really fast once you do. |
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#8
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Re: What is your team up to at your hotel?
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Wow. I had forgotten about this thread. Just promise me that once you have this all figured out, you won't try to test it out in 2008 ![]() |
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#9
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Re: What is your team up to at your hotel?
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Sounds to me like there's as much fun in the hotels as the actual event. We aren't paying to go this year, but I'm hoping we play our way in. Last student year for me, and I want to enjoy Championships before converting into a college NEM. |
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#10
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Re: What is your team up to at your hotel?
Everything from late night drive team meetings with our scouts , to me " networking " ... well just talking to and making connections with other teams
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