Question

Calculate the value of acceleration due to gravity on the surface of Mars if the radius of Mars = 3.4 × 10³ km and its mass is 6.4 × 10²³ kg.

Answer 1

Given: M = 6.4 × 10²³ kg 

R = 3.4 × 10³ = 3.4 × 10⁶ m,

To find: Acceleration due to gravity on the surface of the Mars (g_M)

Formula: g = GM/R² 

Calculation: As, G = 6.67 × 10^-11 N m² /kg² 

From formula,

Acceleration due to gravity on the surface of Mars is 3.693 m/s².