Posted by Leah PLEASE HELP!!! :) on .
suppose that the surface (radius=r) of the space station is rotating at 35.8 m/s. what must be the value of r for the astronauts to weigh onehalf their earth weight?

AP physics  bobpursley, Friday, October 29, 2010 at 11:14am
1/2 mg= m v^2/r solve for r.
check my thinking.