  We study the velocity statistics distribution of an external heavy particle
in holographic fluids. We argue that when the dual supergravity background has
a finite temperature horizon the velocity statistics goes generically as $1/v$,
compatible with the jet-quenching intuition from the quark-gluon plasma. A
careful analysis of the behavior of the classical string whose apparent
worldsheet horizon deviates from the background horizon reveals that other
regimes are possible. We numerically discuss two cases: the magnetized
quark-gluon plasma and a model of superfluid flow. We explore a range of
parameters in these top-down supergravity solutions including, respectively,
the magnetic field and the superfluid velocity. We determine that the velocity
statistics goes largely as $1/v$, however, as we leave the non-relativistic
regime we observe some deviations.
