Body travels this far in 90 minutes 5400 secs so speed 788 kmsec. The orbital speed formula is provided by Where G gravitational constant M mass of the planet r radius. The formula for orbital speed is the following.
The orbital velocity can be found using the formula.
Orbitalspeed 2 times pi times frac orbitalradius timeperiod v 2 times pi times. If you know the value of this fields potential difference you can calculate the speed or velocity of an electron moving under its influence. Velocity v Square root Gmr Where G is a gravitational constant For Earth Gm 39860044181014 m3s2 m is the mass of earth or other larger body. The formula for orbital speed is the following.