title: Physics object doesn't bounce correctly at low speed in Unity
body: <p>I am running into a problem where when a physics enabled ball is going slowly it doesn't bounce off objects correctly. I have made a video to illustrate the problem</p>
  
  <p><a href="https://youtu.be/9T1hkir7sCo" rel="noreferrer">https://youtu.be/9T1hkir7sCo</a></p>
  
  <p>Basically, the ball should run into the stationary ball and the stationary one should bounce off. This works when the speed is fast enough, but below a threshold they both just start moving together, which looks weird. </p>
  
  <p>Whats going with this, and how can I make it react properly?</p>
  
  <p>Experiment details (same for both objects):</p>
  
  <p>RigidBody</p>
  
  <ul>
  <li>Mass: 1</li>
  <li>Drag: 0</li>
  <li>Angular Drag: 0</li>
  <li>Use gravity: false</li>
  </ul>
  
  <p>Physics material:</p>
  
  <ul>
  <li>Dynamic friction: 0</li>
  <li>Static friction: 0</li>
  <li>Bounciness: 1</li>
  </ul>