You are using Poser 5, right? Then you can use Python scripts, and Ockham has made some good ones, a gravity one, among others, that would allow your ball to bounce nicely. He has also made a script (the name eludes me right now) that I think you could use for something like a dripping faucet (and I have a nice free faucet on my homepage ;o) ) Yeah, Saxon. Thirteen for sure :o)

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.