Centripetal Force and circular motion

[ferrariistheking]

Homework Statement

Gravity causes a centripetal force that allows satellites to travel around planets.

How fast must a 102-kg satellite travel to maintain a circular orbit 352 km above Earth's surface?

Homework Equations

F=m(v^2/r) -----> (F/m) x r= v^2, then square root

F= force
m=mass
v=velocity
r=radius

The Attempt at a Solution

So basically, I'm solving for v in km/s.

The mass is 102 kg

For radius, I added the radius of the Earth in meters with the circular orbit of 352 km.
6371000m + 352000m= 3723000m which is r.

The problem is that I need to solve for F. Does anyone know how to continue with this problem?

 

[mfb]

What is the gravitational force a 102 kg satellite feels at this height?

 

[lekh2003]

The problem is that I need to solve for F. Does anyone know how to continue with this problem?

Your answer is in the question. Gravity is the centripetal force. What is the force of gravity on a 102 kg object?

 

[Chestermiller]

Your answer is in the question. Gravity is the centripetal force. What is the force of gravity on a 102 kg object?

What is the equation for the gravitational force of attraction between two bodies of mass M and m whose centers are separated by a distance r?