Question

Mass of the Earth is 6 × 1024 Kg. Thus, the value of g on the Earth is g=9.8m/s2.​

Answer 1

Explanation:

yes the mass of earth is 6x 10*24 due to which g= 9.8m/s*2

Answer 2

Given that,

Mass of the Earth m  

1

​

=6×10  

24

kg

Mass of the Moon m  

2

​

=7.4×10  

22

kg

Distance between the Earth and the Moon d=3.84×10  

5

km=3.84×10  

8

m

Gravitational Constant G=6.7×10  

−11

Nm  

2

/kg  

2

 

Now, by using Newton’s law of gravitation

 F=  

r  

2

 

Gm  

1

​

m  

2

​

 

​

 

F=  

(3.84×10  

8

)  

2

 

6.7×10  

−11

×6×10  

24

×7.4×10  

22

 

​

 

F=  

14.8225×10  

16

 

297.48×10  

35

 

​

 

F=20.069×10  

19

 

F=20.1×10  

19

N

Hence, the gravitational force of attraction is 20.1×10  

19

N