Drag force on an object is given by:
1
\({F_D} = \int_s^1 {({p_n} - \tau )} \)
2
\({\rm{F}} = \frac{1}{2}{{\rm{C}}_{\rm{d}}}{\rm{\rho A}}{{\rm{v}}^2}\)
3
\({F_D} = \int_s^1 {( - {p_n}\tau )} \)
4
\({\rm{F}} = \frac{1}{4}{{\rm{C}}_{\rm{d}}}{\rm{\rho A}}{{\rm{v}}^2}\)