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July 23, 2014

July 23, 2014

Posted by **Deb** on Monday, September 1, 2008 at 5:21pm.

A superball rebounds half the height it drops. The ball is dropped from a height of 176 feet. How far off the ground is the ball when it has traveled a total of 500 feet?

- Math 2020 logic geo #2.. -
**Damon**, Monday, September 1, 2008 at 5:57pmYou do not say if you know about geometric series so with brute force:

It goes down 176 feet and bounces

total = 176

The first bounce up is 176/2 = 88 feet

total = 264

Then it also goes down 88 feet

total =352

then up 44

total = 396

then down 44

total = 440

then up 22

total = 462

then down 22

total = 484

then up 11

total = 495 when it is 11 feet high

then down 5 to reach 500

Leaving it 6 feet high.

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