he mass of Mars is 6.39 Γ 1023 ππ and has a radius of 3.39 Γ 106 π compared to the mass of
the Earth, which is, 5.97 Γ 1024 ππ and a radius of 6.371 Γ 106 π. The gravitational acceleration
on the surface of the Earth is 10 π
π 2 and the surface of Mars is 3.7 π
π 2. Why is the gravitational
acceleration less on Mars than Earth