Question

13. Find the escape speed of a body from the
surface of Mars. [Radius of Mars = 3392 km,
gMars = 3.724 m/s?]
[2 M]​

Answer 1

Answer:

Escape speed = root (2GM/R)

Or,

Substituting gR^2 = GM

Escape speed = root (2gR)

Escape speed for Mars = root (2 × 3392 × 3.724 × 10^-3)

(g = 3.724 m/s = 3.724 2 10^-3 km/s)

So,

Escape speed = root 25.26 km/s = 5.0259 km/s

or 5.026 km/s