the-martian-moon-phobos-orbits-mars-in-an-ellipse-as-shown-in-the-figure-at-the-

Question

The Martian moon ''Phobos'' orbits Mars in an ellipse, as shown in the figure. At the periapsis (the closest distance from Mars), it moves at 2138 m/s. Utilizing the law of conservation of energy, calculate its speed at point O.
[Take the mass of Mars as 6.4 x 10²³ kg]

[Take the mass of Mars as 6.4 x 10²³ kg]

Diagram showing the elliptical orbit of Phobos around Mars with points O and P marked.

Accepted Answer

2.10 × 10³ m/s

Answer

2.12 × 10³ m/s

Answer

2.13 × 10³ m/s

Answer

2.14 × 10³ m/s