Question

Discussion on acceleration due to gravity( g) with respect to variabale places and following equation g= GM/ R2 where: G= universal gravitational constant . M= mass of the earth . R = Radious of the earth 1) calculate the value og ' g' on i) Earth's surface. ii) moon' s surface
frnds plz help it is urgent​

Answer 1

Answer:

Hey mate here is your answer

Mass of the earth (M) = 6×10^24kg

Radius of the earth (r) = 6.4×10^6m

Gravitational constant (G) = 6.67×10^-11

Calculate gravity on earth

We know g = GM/r^2

= 6.67×10^-11 6×10^24/(6.4×10^6)^2

= 9.8m/s^2.

Gravity on the Moon

The mass of the Moon is 7.35 x 10^22 kg average radius of the Moon is 1.74 x 10^6 m. Plugging into the formula, we have: g = (6.67 x 10^-11 N-m^2/kg^2)(7.35 x 10^22 kg )/(1.74 x 10^6 m)^2 = (4.9 x 10^12 )/(3.03 x 10^12) = 1.6 m/s^2.