Einstein's equation is E = mc2 which relates mass to energy, c is the speed of light and the mass of particle moving with speed v is given by Let x = v2/c2 so that and find the linear approximation of m(x) about x = 0. i.e., an linear approximation to m when (v/c)2 is small. Insert your approximation into Einstein's equation to show that once you replace x by v2/c2. Explain why Newtonian physics, in this case, is just a linearization of Einstein's theory of relativity.