Are These Valid Galilean Transformations in a 1D System?

[gijoe]

in a 1 d system.

x measured WRT an inertial frame k, are the following, valid Galilean transformations:

x=x'- sin(wt)
and
x=x'³Not sure where to go with this...
I can't find any relevant material anywhere.

 

[lanedance]

Galilean to me would imply a trasformation between inertial (no acceleration) reference frames

this would mean the dervative of one wrt the other would be constant & represent the relative velocity

neither of the examples appear to satisfy that criteria