pic: Team 1501's, 2008 Ball Drop

[Wayne Doenges]

[cdm-description=photo]29491[/cdm-description]

[Nate Laverdure]

I would estimate that the height of a story, from floor to floor, is 18 feet, assuming that the kid in the black shirt is approximately 6 feet tall. This makes the total height to the floor of the 3rd floor equal to 2*18 = 36 ft. Since the kid's arms are outstretched, I would assume that he dropped the ball from about shoulder-height, which would put the bottom of the ball at approximately 2 ft above the 3rd floor. Total height = 38 ft.

According to the post, the ball bounced to a height of 17 ft. This means that "bounce percentage" would equal 17/38 * 100 % = 44.7%.

[VanMan]

I thought about having our robot bounce it on the ground, but it would not be inaccurate and there are better solutions.

[evanisthat!]

I would estimate that the height of a story, from floor to floor, is 18 feet, assuming that the kid in the black shirt is approximately 6 feet tall. This makes the total height to the floor of the 3rd floor equal to 2*18 = 36 ft. Since the kid's arms are outstretched, I would assume that he dropped the ball from about shoulder-height, which would put the bottom of the ball at approximately 2 ft above the 3rd floor. Total height = 38 ft.

According to the post, the ball bounced to a height of 17 ft. This means that "bounce percentage" would equal 17/38 * 100 % = 44.7%.

Your estimations seem right, but don't you have to convert the inches to feet or the feet to inches in order to get an accurate percent? 17/(38*12)*100% = 3.72%? Correct me if I am wrong... :cool:

[Nate Laverdure]

Nope, the image said that the ball was dropped from the 3rd story (about 38 ft) and bounced back up about 17 ft, which would be about 45%.

[flamefixed]

how its wrriten, it bounced seventeen feet. 17'
if it bounced 17 inches.. 17" then, wow, very deadening weight.

[Wayne Doenges]

We didn't measure the height at drop. The second floor is over an atrium which would make it a little higher than 38 feet. Student is a little over 5' tall.
We had about 6 students arranged around the bounce zone to protect the surrounding objects.

[evanisthat!]

Nope, the image said that the ball was dropped from the 3rd story (about 38 ft) and bounced back up about 17 ft, which would be about 45%.
My mistake, I thought you said 17 inches (obviously) sorry..

[dlavery]

We tried this once with our robot as well.

Without going through all the details of the experiment, I will pass along our conclusions:

Robots do not bounce as well as the balls.


-dave



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[Elgin Clock]

Please do not try this (awesome) experiment at your hotels this season with very large open atrium areas. :yikes:

Thank you. :cool:

[Nate Laverdure]

Please do not try this (awesome) experiment at your hotels this season with very large open atrium areas. :yikes:

Thank you. :cool:
Air resistance would become too big of a factor to get good results anyways.

[IndySam]

Wayne, you better be more kind to that ball. With all the rain you guys are getting you may need it as a life saving device!

[Chris_Elston]

Wayne, you better be more kind to that ball. With all the rain you guys are getting you may need it as a life saving device!

We also might need to unzip it, crawl inside and protect us from Tornadoes in January....

[Terminator]

How high would it bounce if you dropped it off of the Empire State Building?
Has anyone tried that yet?