Calculate the orbital speed (in km s ) of a satellite at an altitude of above Earth’s…

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

Problem

Calculate the orbital speed (in km s

^{-1}

) of a satellite at an altitude of

300\,\text{km}

above Earth’s surface. Take Earth’s mean radius

R_{\rm E}=6.4\times10^{6}\,\text{m}

and

g=9.8\,\text{m s}^{-2}

. (a)

7.0

(b)

7.7

(c)

8.9

(d)

10.9