Posted by **pavatharani** on Monday, June 13, 2011 at 10:30am.

two boys start running straight towards each other from two points that are 100m apart. one runs with a speed of 5m/s, while other moves at 7m/s.how close are they to the slower one's starting point when they meet?

- physics -
**drwls**, Monday, June 13, 2011 at 10:48am
The distance between them is reduced at a rate 12 m/s, and they meet after 100/12 = 8.333 s. At that time, the slower runner is

5 * 8.333 = 41.67 m from his starting point. As a fraction, that is 125/3 meters.

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