A satellite of mass is in a circular orbit of radius around a planet of mass

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

Problem

A satellite of mass

m

is in a circular orbit of radius

R

around a planet of mass

M

. How much additional energy must be supplied to move it to a new circular orbit of radius

3R

? (a)

\dfrac{GMm}{6R}

(b)

\dfrac{GMm}{3R}

(c)

-\dfrac{GMm}{3R}

(d)

\dfrac{2GMm}{3R}