Question

calculate the value of acceleration due to gravity on Moon given mass of moon is equal to 7.4 into 10 raise to 22 kg, radius on moon is equal to 1740 km

Answer 1

Mass of moon is, M = 7.31 × 1022 kg

Radius of moon is, R = 1.7 × 106 m

So, acceleration due to gravity of moon is, gm = GM/R2

=> gm = (6.67 × 10-11)(7.31 × 1022)/(1.7 × 106)2

=> gm = 1.68 m/s2