%0 Journal Article %T Relativistic Velocity Addition on a Space-Time Diagram %A Akihiro Ogura %J World Journal of Mechanics %P 51-56 %@ 2160-0503 %D 2022 %I Scientific Research Publishing %R 10.4236/wjm.2022.124004 %X We derive the addition of velocities in special relativity from the Minkowski¡¯s space-time diagram. We only need to draw some world lines on the diagram, measure the lengths and divide the two lengths for obtaining the velocity. We also give the theoretical background for this method. This method is so simple that it is worth for undergraduate students to acquire the addition of velocities in special relativity. %K Velocity Addition %K Special Relativity %K Space-Time Diagram %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=120875