The formula to determine the diameter of a crater is. D-0.003mp3 where D is the crater diameter in kilometers (km), m is the mass of the impactor in kilograms (kg), and is the velocity in Kilometers per second (km/s) This formula is only valid on the Moon. All other terrestrial planetary bodies have a similar formula, but the coeficient varies depending on the composition of the surface. Say you had an impactor with a mass of 9.6e12 kg hit the Moon. This is equivalent to the total biomass of all fish on Earth. If this object has a velocity of 24 km/s, what is the diameter of the resultant crater? D = 25.87 kom Now, another impactor with the same mass but twice the velocity strikes the Moon. If the velocity is 48 km/s, what is the diameter of the second crater?D = km