Serendeputy - your personal news assistant.

Welcome to Serendeputy!

Serendeputy is your personal news assistant.

Your deputy:
- learns what you like and don't like,
- lovingly compiles a list of news and blogs for you.

You can help your deputy learn by searching, clicking links and pressing the little smiley faces.
How it works.

What to do:
  1. Click links to teach your deputy
  2. Click smileys and frownies
  3. Find favorite topics and sources
  4. See how much better your deputy is getting at finding you good stuff.
  5. Sign in for free to save your profile, or please tell me why you won't.

by eric

A ball is dropped from rest, the initial height is $h_1$. There is air resistance given by $-mkv$. In the downward motion, the equation of motion can by written as $$\dot v = -g-kv$$ with the y axis pointing down. The ball hits the ground at speed $v_b$....
From: Physics Stack Exchange | By: eric | Thursday, October 23, 2014
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