Geosynchronous Satellites Orbit the Earth at a Distance of 42,000

Multiple Choice

Geosynchronous satellites orbit the Earth at a distance of 42,000 km from the Earth's center. Their angular speed at this height is the same as the rotation rate of the Earth, so they appear stationary at certain locations in the sky. What is the force acting on a 2000-kg satellite at this height? The radius of the Earth is . (Hint: Use that gravity behaves as .)

A) 85 N
B) 333 N
C) 411 N
D) 455 N