g = Gm/r^2
Where:
g = acceleration due to gravity (in m/s2)
G = gravitational constant (6.67 × 10^-11 N m2/kg2)
m = mass of the Earth (5.972 × 10^24 kg)
r = radius of the Earth (6.371 × 10^6 m)
Plugging in the values, we get:
g = (6.67 × 10^-11 N m2/kg2) × (5.972 × 10^24 kg) / (6.371 × 10^6 m)^2
g = 9.81 m/s2
Therefore, the gravity on Earth is approximately 9.81 m/s2.
