VZ 2. 4x 108 mls + 0. 80 c Loz = Relativity riots Relative to an observer at rest, a brick thrown in a physics riot has a g value of 1.27. How fast is the brick moving relative to the observer? If the mass of the brick when at rest is 15 kg, what is the kinetic energy of the brick as it is moving? How does this differ from the classical prediction of kinetic energy