Which one of the following gives the speed of a satellite of negligible mass…

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

Problem

Which one of the following gives the speed

v

of a satellite of negligible mass revolving in a circular orbit of radius

r

about a planet of mass

M

? (a)

v=\sqrt{\dfrac{GM}{2r}}

(b)

v=\sqrt{\dfrac{2GM}{r}}

(c)

v=\sqrt{\dfrac{GM}{r}}

(d)

v=\sqrt{\dfrac{GM}{r+R}}