Question

calculate the mass of the earth is the average radius of the earth is given by 6370km and the acceleration due to gravity is 9.8m/s²(G=6.67×10–¹¹Nm²/kg²​

Answer 1

Answer:

g=

R

2

GM

Given, G=6.67×10

−11

Nm

2

kg

−2

R=6.4×10

6

m

g=9.8ms

−2

∴M=

G

gR

2

=

6.67×10

−11

9.8×6.4×6.4×10

12

≈6×10

24

kg