A space probe moves in a circular orbit around Earth

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A space probe moves in a circular orbit around Earth. The kinetic energy of the probe is

E

. The probe will reach the escape speed when its kinetic energy is increased at least to: (A)

\sqrt{2}E

(B)

2E

(C)

2\sqrt{2}E

(D)

4E