Thread:Morning Star TM/@comment-38397104-20200110000411/@comment-44501217-20200112152303

Komodo25M wrote: On top on a skyscraper in Tokyo. Okay. Let's just say it's a 187 m tall skyscraper.

Distance between Earth and Neptune = 4.5606e12 m.

Distance the rock covered = 4.5606e12 - 187 = 4560599999713 m.

Timeframe = 5 minutes = 300 seconds.

Speed the rock flew = 4560599999713/300 = 1.5202e10 m/s.

Weight of rock = 20 gm = 0.02 kg.

KE = (0.5*(0.02))*(1.5202e10)^2 = 2.31100804e18 Joules.