Relativistic velocity-addition formula
= Relativistic velocity-addition formula
{wiki=Velocity-addition_formula}
For a boost of speed $V$ along $x$,
$$
u'_x=\frac{u_x-V}{1-Vu_x/c^2},
\qquad
u'_y=\frac{u_y}{\gamma_V(1-Vu_x/c^2)}.
$$
= Relativistic velocity-addition formula
{wiki=Velocity-addition_formula}
For a boost of speed $V$ along $x$,
$$
u'_x=\frac{u_x-V}{1-Vu_x/c^2},
\qquad
u'_y=\frac{u_y}{\gamma_V(1-Vu_x/c^2)}.
$$