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We present an analysis of the internal velocity structures of the newlyidentified sub-0.1 pc coherent structures, droplets, in L1688 and B18. Byfitting 2D linear velocity fields to the observed maps of velocity centroids,we determine the magnitudes of linear velocity gradients and examine thepotential rotational motions that could lead to the observed velocitygradients. The results show that the droplets follow the same power-lawrelation between the velocity gradient and size found for larger-scale densecores. Assuming that rotational motion giving rise to the observed velocitygradient in each core is a solid-body rotation of a rotating body with auniform density, we derive the "net rotational motions" of the droplets. Wefind a ratio between rotational and gravitational energies, $\beta$, of $\sim0.046$ for the droplets, and when including both droplets and larger-scaledense cores, we find $\beta \sim 0.039$. We then examine the alignment betweenthe velocity gradient and the major axis of each droplet, using methods adaptedfrom the histogram of relative orientations (HRO) introduced by Soler et al.(2013). We find no definitive correlation between the directions of velocitygradients and the elongations of the cores. Lastly, we discuss physicalprocesses other than rotation that may give rise to the observed velocityfield.

Droplets II: Internal Velocity Structures and Potential Rotational Motions in Pressure-dominated Coherent Structures