Thought it would be interesting to see what Wolfram Alpha does with that input: http://www.wolframalpha.com/input/?i=150%2C000%2C000+km+at+1%2C000+km%2Fsec http

Thought it would be interesting to see what Wolfram Alpha does with that input: http://www.wolframalpha.com/input/?i=150%2C000%2C000+km+at+1%2C000+km%2Fsec http://www.wolframalpha.com/input/?i=150%2C000%2C000+km+at+1... It agrees with your math, anyway.