An object of mass 7.1x1023 circles the earth and is attracted to it with a force whose magnitude is given be Gmem/r2. If the period of rotation is 32 days, what is the distance from the earth to the object? Here G=6.67x10-11 Nm2/kg2, me=6x1024 kg.
The Attempt at a Solution
I used the first equation to isolate r, the distance from the earth to the object to get sqrt((G(m*Me)/Fg)=r
But this is where I get stuck, i dont see how to find the other unknown, Fg I'm guessing it has to do something with the period of 23 days, but I cannot connect the two in my head.