Circular motion:

Not sure if I did this right. I need to find the speed that a spaceship needs to rotate to create an artificial gravity of 9.8m/s^2 (at feet)
r=10m

a=V^2/r 9.8=v^2/r root of(9.8*10)=v v=9.9m/s

is this close?

nm. I figured it out :)