Physics

Problem

The escape speed from the surface of earth is

v_{esc}

. The radius of earth is

R

. A satellite of mass

m

is in orbit at a height

\frac{R}{4}

above the surface of the Earth. What is the energy required to move the satellite to infinity? A.

\frac{mv_{esc}^2}{5}

\frac{2mv_{esc}^2}{5}

mv_{esc}^2

2mv_{esc}^2