Gas drag
= Gas drag
Gas drag is a <drag force> on a solid body due to its motion relative to surrounding gas. With <aerodynamic stopping time> $t_s$, the linear approximation gives $\dot{\mathbf v}|_{\rm drag}=-(\mathbf v-\mathbf v_g)/t_s$.
= Gas drag
Gas drag is a <drag force> on a solid body due to its motion relative to surrounding gas. With <aerodynamic stopping time> $t_s$, the linear approximation gives $\dot{\mathbf v}|_{\rm drag}=-(\mathbf v-\mathbf v_g)/t_s$.