orbital period (1 Viewer)

[skillstriker]

Calculate the orbital period of Deimos, one of the two moons of Mars. Its average distance from mars is 23 400 km and its irregular shape averages about 13 km across. The mass of Mars is 6.42 x 10^23 kg, and its diameter is 6794 km.

Full working please. Thanks!

 

[Squar3root]

r^3/T^2 = GM/4pi^2

(23400000)^3/T^2 = 6.67x10^-11*6.42x10^23/4pi^2

solving for T

T = 108686 seconds
T = 30.2 hours

or something like that

 

[glauben]

Here you go: