I was calculating the damage of weaponized high speed rail and wolfram alpha told me "infinity joules" and was confused where I messed up the math.
it turns out by "high speed" you don't usually mean "light speed", which would indeed give you infinity joules.
@foone would infinite joules be a consequence of relativistic mass increase?
@dr_a yeah. As you get closer to c, your mass increases. at c, your mass is infinity, as is your kinetic energy.