Answer:
v = 895 m/s
Explanation:
Time period is given as 39 Earth Days
[tex]T = 39 days \times 24 hr \times 3600 s[/tex]
[tex]T = 3369600 s[/tex]
now the radius of the orbit is given as
[tex]r = 4.8 \times 10^8 m[/tex]
so the total path length is given as
[tex] L = 2 \pi r[/tex]
[tex]L = 2\pi (4.8 \times 10^8)[/tex]
[tex]L = 3.015 \times 10^9 [/tex]
now the speed will be given as
[tex]v = \frac{L}{T}[/tex]
[tex]v = \frac{3.015 \times 10^9}{3369600} [/tex]
[tex]v = 895 m/s[/tex]
