Timothy A. McDaniel tmcd at
Fri Aug 22 08:30:58 PDT 1997

C. Scipio Cinncinatvs wrote:
> A flat ball might actually provide more "oomph" because its energy would
> tend to transfer more easily to the target rather than being retained by
> the ball -- less bounce, more splat.

Um, you *want* bounce.

Old ball comes from left: momentum mv.  Hits and sticks, so new v <- 0.
Momentum transferred: mv.

New ball comes from left: momentum mv.  Hits and bounces with perfect
elasticity, so now it's going just as fast the other direction,
so new v < -old v (negative because it's going in the other
Momentum transferred: 2mv.

Physics types, did I get it right?

Daniel de Lincoln
Tim McDaniel.   Reply to tmcd at
tmcd at is not a valid address.

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