In article
,
Aardvark wrote:

The instant the ping-pong ball plunges past the surface of the Sun, the
pull of the Sun's gravity on the ping-pong ball will begin to decrease.

And the ball will be travelling very fast.
[Snip]

Once the ping-pong ball reaches the center of the Sun it will achieve
gravity equilibrium and lie forever suspended there (at the exact center
of a great hollow).

UNTRUE. The ball, being unaffected by radiation pressure, viscosity etc will
have reached its maximum speed and will fly on away from the centre,
gradually slowing. After leaving the sun it will carry on, slowing, and come
to a halt at the distance from the sun at which it started.

If you start from a false premise you are unlikely to arrive at the truth!

--
Rodney Blackall (retired meteorologist)(BSc, FRMetS)
Buckingham, ENGLAND
Using Acorn SA-RPC, OS 4.02 with ANT INS and Pluto 3.03j