You can see the problem with this statement

1 ton @ 2545 km/h = 706.94 m/s

Run the calc

1/2 * 1000 * 706.94 * 706.94 = 249,882,081.8 joules

So that is closer to 250MJ of energy because of the increased speed it's 5 times the other value

Last edited by Orac; 12/23/15 01:29 AM.
I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.