Liquid wicking behaviour during short contact time in V-shaped grooves (open capillaries) is studied in this work. An experimental setup consisting of two high-speed video cameras is developed to capture images of first few milliseconds of liquid wicking in V-shaped grooves. The rate of wicking considered in this study is about 1000 times faster than those previously reported in literature. V-groove geometry is systematically varied to understand the effect of V-groove geometries such as apex angle and the width/height of the groove on liquid wicking rate. Our results show that both the groove width and the apex angle significantly influence on the rate of wicking. We introduce an alternative model for liquid wicking distance (z) calculation. The new model follows the same square root of time dependence of z similar to existing models. Laplace pressure in the threshold region of the wicking front is taken into account when deriving the driving force term in the model instead of surface energy change. Our results show an increasing rate of wicking at higher inertial energy of an impacting drop. Inertial effect gradually decreases as the wicking front moves away from point of impact. Finally, our model, along with another literature model which also assume Poiseuille flow and static advancing contact angles, were tested against the experimental data. Both models predict numerical values in general agreement with experiment and with each other. Differentiation between the models is possible only in proportionality term.