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 Subject: PHYSICS / TRIVIA Category: Science > Physics Asked by: rocactus-ga List Price: \$10.00 Posted: 26 Dec 2005 14:06 PST Expires: 08 Jan 2006 00:57 PST Question ID: 609919
 ```Question: How many tennis balls can you fit tightly inside "all usable free space" of the passenger area of a 2005 Mini Cooper, (hardtop model) motor vehicle? Considering that: a).- The balls are made of plastic and are aproximately 15% larger than regular tennis balls, and that b).- These are fully packed at about 95% capacity into the passenger area of the vehicle only? (In other words, the trunk is empty and not used at all for this storage purpose). IMPORTANT ADDITIONAL INFORMATION.- a).- The exact interior dimensions of the Mini Coooper model can be found at: http://www.miniusa.com/link/ourcars/features/cooper_s/interior/cockpit/dimensions/none b).- A standard tennis ball measures between 2.5 and 2.6 in (6.35 and 6.6 cm) in diameter and weighs between 1.98 and 2.1 oz (56 and 59.4 g).``` Clarification of Question by rocactus-ga on 26 Dec 2005 14:08 PST `ANSWERS MUST BE RECIEVED BY JANUARY 5, 2006` Clarification of Question by rocactus-ga on 27 Dec 2005 08:32 PST ```CLARIFICATION: 1)-. THE BALLS ARE 15% LARGER IN DIAMETER THAN A REGULAR TENNIS BALL. 2).- HOWEVER, THESE ARE NOT TENNIS BALLS. (THAT TERM WAS ONLY USED AS REFERENCE FOR SIZE ONLY. ?RATHER, THE BALLS ARE MADE OF LIGHT-WEIGHT PLASTIC WHICH IS UNSQUISHABLE). THEREFORE THESE WILL NOT FLEX INTO EACHOTHER UNLESS A VERY SUBSTAINTIAL AMOUNT OF WEIGHT IS EXERTED DIRECTLY UPON THEM).``` Clarification of Question by rocactus-ga on 27 Dec 2005 08:47 PST ```4).- The interior room lenght of the passenger area of the vehicle can probably also be calculated by looking at the exterior dimension features at: http://www.miniusa.com/link/ourcars/features/cooper_s/exterior/dimensions/none (It seems to me that this would fall within the vicinity of about 90 " inches in length at it's longest point) 5).- The calculations should obviously also take into account (or substract) the overall exact surface areas that are taken up by the seats, dashboard, gear shift / box, glove compartment, and ofcourse, steering wheel.``` Clarification of Question by rocactus-ga on 27 Dec 2005 20:44 PST ```Yes, I'm an advertising / arts major and am planning to fill up this specific car with as many balls of this specific size as possible for my degree project. The general idea is that all balls will be painted in different vivid colors and so as to resemble oversized candy. The car itself will also be painted and outfitted in a way so as to resemble an oversized candy slot-vending machine. (It's supposed to be my great idea as to a would be campaign aiming to pitch this vehicle in a fun and innovative way to would be buyers). Anyway, as of now, I've found a manufacturer that currently makes plastic balls around the specific size I mentioned. (I have a sample btw.) First though and as you can imagine: a).- I want to know precisely (or as close as humanly possible) as to how many balls of this size I'm going to need in order to fill up the Mini since I will have to purchase and paint them all in order to fill up the car. b).- Obviosuly, this is going to cost me good money so I don't want to just "plunge into this" or go ahead with this idea unless it's doable. Therefore, knowing specifics is a must because I certainly don't want to end up purchasing what may end up being way too many or too few of these balls and without first getting a very precise estimate as to how many of these I'm going to need. I mean, cost is definitely an issue here. ?Reason why I need someone's expertise and help before proceeding. Thanks again!```
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 Subject: Re: PHYSICS / TRIVIA From: qed100-ga on 26 Dec 2005 16:54 PST
 ```Hello, You need to clarify what you mean by the balls being 15% larger than tennis balls. Is that 15% larger in diameter? In volume? Surface area?```
 Subject: Re: PHYSICS / TRIVIA From: ansel001-ga on 26 Dec 2005 23:58 PST
 ```Tennis balls can be squished. And when packed tightly, they will be squished to a degree.```
 Subject: Re: PHYSICS / TRIVIA From: stressedmum-ga on 27 Dec 2005 02:50 PST
 ```A bit of tennis ball trivia to help with the calculations -- or not -- http://wings.avkids.com/Tennis/Book/ball-01.html```
 Subject: Re: PHYSICS / TRIVIA From: qed100-ga on 27 Dec 2005 10:49 PST
 ```I'm just curious as to why the balls have this specific diameter. Are you planning to actually fill a car with balls of this size which are at your disposal? Sounds like a terrific college stunt.```
 Subject: Re: PHYSICS / TRIVIA From: pinkfreud-ga on 27 Dec 2005 10:59 PST
 ```I wonder if this is related to a contest in which a prize is awarded to the person who can guess the number of items that are in a container. There was a similar contest in my town a few years ago in which golf balls were packed into a Volkswagen. The person whose guess was closest was a little old lady who said that her guess was based on her son's birthdate. A university physics class had made the contest a group project, and their guess wasn't very close. I suspect that this kind of contest is an area in which academic estimates may not necessarily jibe with real-world situations.```
 Subject: Re: PHYSICS / TRIVIA From: myoarin-ga on 28 Dec 2005 05:09 PST
 ```I will go along with Vitaman-ga's answer to the related question: 2047 balls http://answers.google.com/answers/threadview?id=609890 (Why the dickens do the balls have to be 15% larger than standard tennis balls?) There are larger T-balls sold (or were sold), significantly slower, of course.```
 Subject: Re: PHYSICS / TRIVIA From: egon_spangler-ga on 28 Dec 2005 12:30 PST
 ```Save some money on balls and use a filler for the interior of the car. You could get pillow stuffing and fill the passanger footwells and pretty much everything in the car below the windows. I'm sure your instructor would be pleased with any price savings on advritizing materials that you could achieve without any significant degredation to the visual impact of the thing.```
 Subject: Re: PHYSICS / TRIVIA From: azdoug-ga on 07 Jan 2006 21:59 PST
 ```Just look for pictures online of colorful balls, pieces of candy, etc. Print them, and tape them to the inside of the windows. From a distance (if the pictures are vivid enough), nobody will be able to tell the difference.```