Satellite (Gravitation) Question

[Destrio]

A satellite has a orbital period of 5760s around earth. What is the orbital radius?

I'm not sure how I can do this without the velocity or acceleration.

Thanks,

 

[neutrino]

Is no other information provided in the question?

 

[Destrio]

no other information,
however, part of the question might have been cut off

 

[neutrino]

EDIt: Never mind...

 

[nrqed]

A satellite has a orbital period of 5760s around earth. What is the orbital radius?

I'm not sure how I can do this without the velocity or acceleration.

Thanks,

I assume they mean that the orbit is circular.

Then simply use
$$P = { 2 \pi R \over v}$$

and $$m { v^2 \over R} = G { m M \over R^2}$$
where M is the mass of the Earth and m is the mass of the satellite. Then you have two equations for two unknowns: R and v. Which you can then solve.

Patrick