  In a recent preprint (astro-ph/9905144) Tereno has tried to find the physical
3-velocity (V) at the Event Horizon of a Kruskal Black Hole. This has been done
in the backdrop of the recent work by Mitra (astro-ph/9904162) where it was
shown that the radial geodesic of material particle, unphysically, becomes null
at the Event Horizon. Although Tereno stops short of finding the precise value
of V at r=2M, he concludes that V <1. It is pointed out with reference to
Eq.(13) of Tereno's work that since his delta = (r -2M)/r tends to 0 as r tends
to 2M, V indeed tends to 1. It appears that Tereno's conclusion is driven by
his inability to conceive proper limiting value of fractions. Similarly, his
idea that, the velocity addition formula of Sp. Theory of Relativity breaks
down when both the velocities approach unity is due his same inability. In
particular, our central result that Schwarschild BHs must have M=0 has been
obtained independently from three different considerations (gr-qc/9810038,
astro-ph/9904162, 163). And we also offer here the essential physical reason
why the speed of free fall at the Event Horizon must be equal to the speed of
light in coordinate system. Yet we are thankful to Tereno for making the first
attempt to scientifically criticize our relevant work.
