You could have backed out the number from FAR23.473(d) but who reads the
regs.

(d) The selected limit vertical inertia load factor at the center of
gravity of the airplane for the ground load conditions prescribed in
this subpart may not be less than that which would be obtained when
landing with a descent velocity (V), in feet per second, equal to 4.4
(W/S)\1/4\, except that this velocity need not be more than 10 feet per
second and may not be less than seven feet per second.

Rich

V = A T, solving for T with A = 32 feet per second per second (gravity) we
get a min of 7/32 and max of 10/32 seconds.
S = 1/2 A T^2, solving for S with A and T from above gives us min of 9 3/16"
and max of 18.3/4".

Eric