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Unread 13-09-2007, 15:06
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Where'd my wrench go?
AKA: Michael Baker
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Re: What is your team up to at your hotel?

Quote:
Originally Posted by AdamHeard View Post
Seems a little off to me....

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).
I thought it over (and talked to our team leader who is also the freshman physics teacher and teaches this stuff) and you've got a point. I didn't take into account the acceleration and such. The Atrium is 147m tall, 47 stories, that's just about 3.1m/story.

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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