Do Mass Change Depend on the Velocity?
As seen in Figures 1 and 2, there is a significant difference between the first and latter. In the first a counter force (except body mass) resisting to an external force (F) acting on the body does not exist or develop, although a resistance force develops in kinetic energy of the body in addition to body mass in the latter. The first reason providing this difference is that external force itself forms kinetic energy in the first phenomenon, and there is no relation between kinetic energy and an external force in the second one; the second reason is that kinetic energy has unidirectional force effect in the first phenomenon, and bidirectional in the second one. The significant conclusion from this comparison is a kinetic energy formed or grown in the formation process would not resist to force forming/creating itself, hence would not change mass of the body carrying itself. Kinetic energy exclusively passes to a resistance state against another external force if its unidirectional for
