http://fatcat.ftj.agh.edu.pl/~i7matras/hej.jpg(adsbygoogle = window.adsbygoogle || []).push({});

Both masses are in point.

I need to count displacement x(t) but I don't know how to write derivative equations? Could someone help? Or at least give me a tip?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Spring mass spring mass spring - 2 balls oscillations

**Physics Forums | Science Articles, Homework Help, Discussion**