Impossible Mind Teaser

Impossible Mind Teaser - 19 December

During an experiment, a guy throws a bouncy ball from a 90 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up half way.

How many bounces do you think the ball will make before it comes to a stop ?


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8 comments:

  1. The answer is 9 bounces

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  2. infinite bounces. The ball will come to rest in a finite time and travel a finite distance, but will make infinite bounces. Refer to Zeno's paradox: http://en.wikipedia.org/wiki/Zeno's_paradoxes

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  3. It depends on the diameter of the ball. When the bounces become as tall or less then the ball technically won't be bouncing.

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  4. It'll never technically "stop" bouncing. The distance it bounces will just become infinitesimal and thus imperceptible to the eye. ^_^

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