Complex sentence: A theoretical updraft velocity can be derived from this value via substitution into the kinetic energy equation, although this value will be an underestimation given the aforementioned drag or entrainment effects holding back further acceleration at some point.
Split into simpler sentences: A theoretical updraft velocity can be derived from this value via substitution into the kinetic energy equation. Although this value will be an underestimation given the aforementioned drag or entrainment effects holding back further acceleration at some point.