Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
solve 0.0098*x/sqrt(1+(0.0098*x/299792)^2) * 3600 * 24 =150000
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
