Hey all, was watching my downloads today and saw that my download speed was dropping at such a rate that the eta of the download was almost constant, so I was wondering what negative acceleration would be required for the eta to be constant, if time left is size/speed, speed is first derivative of time and(adsbygoogle = window.adsbygoogle || []).push({});

acceleration is second derivative of time what acceleration is needed for time left to be constant? So a function where 1/integral( f(x) ) = c Any help appreciated.

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

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

# X''(t) required for reciprocal of X'(t) to be constant

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