Recent content by Hirdboy

Thank you, This means (I think): That I'd be right in saying \frac{dt'}{d\tau} = \gamma_w and \frac{dt}{d\tau} = \gamma_u We know \frac{dt'}{dt} = \gamma_v (1-\textbf{u.v}/c^2) and dt'/d\tau = \frac{dt'}{dt} \frac{dt}{d\tau} Subbing in gives the desired result...

Homework Statement Two particles have velocities u, v in some reference frame. The Lorentz factor for their relative velocity w is given by \gamma(w)=\gamma(u) \gamma(v) (1-\textbf{u.v}) Prove this by using the following method: In the given frame, the worldline of the first particle is X...