Question

Calculate the force of gravitation due to earth on a ball of 1 kg mass lying on the ground. (Mass of earth = 6 x 1024 kg; Radius of earth = 6,4 10 km; and G 6.7 x 10 Nm /kg) ​

Answer 1

Answer:

0.97×10 23 N

Explaination : ³M = 6×10²4 kg

R= 6ux 10 K₂

G=6²67 X 10

Nm/kg

6-67x10x6x1024

GM

R²

F

- 11

40.02×1025

40.96 x 10²

097x10

23N

Answer 2

Answer:

9.78*10¹⁸

Explanation:

Formula of Force of gravitation: F= G*(m1*m2/r²)

Here G= 6.7*10Nm/kg

Radius = 6410 km

Mass m1= 6*10²⁴ kg

mass m2=1 kg

substitute the values in above formula

=6.7*10*((6*10²⁴ *1)/(6410)²)

=6.7*10*(1.46*10¹⁷)

=9.78*10¹⁸