Relative Velocity — Rain on a Moving Window
Rain falls dead straight down, yet it streaks backwards across a moving train window. Switch between the ground and the rider to watch v_AB = v_B − v_A being built, observed minus observer.
Rain falls dead straight down, yet it streaks backwards across a moving train window. Switch between the ground and the rider to watch v_AB = v_B − v_A being built, observed minus observer.