With the Infinite Mass Punch, Superman destroyed the Shadow Moon. We will calculate the kinetic energy of the falling Shadow Moon and comment about general relativity.
NUMBER CRUNCHING
First, let’s calculate the kinetic energy of the Shadow Moon. Since it had the same mass of the moon, its mass was 7.34767309*10
22 kg and not 81 billion tons. According to
GL John Stewart, the moon was heading towards Earth at 7614000 km/h or 2115000 m/s. Let’s calculate the kinetic energy.
KE = 1/2mv
2 = (1/2)(7.34767309*
1022 kg)(2115000 m/s*2115000 m/s) = 1.6433897*10
35 J.
In other words, Superman would have to generate close to the energy of the Milky Way galaxy in order to shatter the Shadow Moon.
However, Superman likely traveled FTL and accelerated his mass to infinity. In general relativity, the Infinite Mass Punch would have to generate infinite kinetic energy in order to shatter the Shadow Moon.
Traveling at FTL speed, Superman traveled at a speed of 1.5358782*10
33 m/s, 5.1367164*10
24 times the speed of light:
Superman’s Speed = (1.6433897*10
35 J)/(107 kg) = 1.5358782*10
33 m/s.
SUPER STRENGTH
Superman generated at least 1.6433897*10
35 J/s of power in order to shatter the Shadow Moon. Traveling at FTL speed, Superman had to generate an Infinite-Level of Super Strength.