Question

The asteroid, Ida, has a small moon, Dactyl, that orbits at a speed of 5.66 m/s in an orbit of radius 90, 000m . What is Ida's mass?

Answer 1

Step-by-step explanation:

the person on top of me was correct 4.3 10^16 i have it in my notes from when i was in school :) so they are right

Answer 2

4.3 x 10^16 kg

Step-by-step explanation:

M = rv^2/G =[90,000 x 5.66^2] / [6.67 x 10^-11]

M = 43,226,446,776,611,694 = 4.3 x 10^16 kg - Ida's mass.