Satellite X orbits a planet with orbital radius

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

Problem

R

. Satellite Y orbits the same planet with orbital radius

2R

. Satellites X and Y have the same mass. What is the ratio

\frac{\text{centripetal acceleration of X}}{\text{centripetal acceleration of Y}}

? (A)

\frac{1}{4}

(B)

\frac{1}{2}