Question

value of M.
4 The mass of the Earth is 6.0 x 10 kg and that of
the moon is 7.4 10kg. If the distance between
their centres is 3.8 x 10% m, calculate at what
point on the line joining their centres is no
gravitational force. Neglect the effect of other
planets and the sun.​

Answer 1

Answer: use your calculator and then write down the answer that you get

Explanation: when you use a calculator you can get the right answer hope this helped

Answer 2

We know the force of attraction between two object is given by the formula

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