Answer:
[tex]5.34\cdot 10^{-10} N[/tex]
Explanation:
The gravitational force is an attractive force exerted between any objects with mass.
The magnitude of the gravitational force between two objects is given by:
[tex]F=G\frac{m_1 m_2}{r^2}[/tex]
where
G is the gravitational constant
m1, m2 are the masses of the two objects
r is the separation between the two objects
In this problem, we have:
[tex]m_1 = 10 kg[/tex] is the mass of the 1st ball
[tex]m_2 = 20 kg[/tex] is the mass of the 2nd ball
r = 5 m is the separation
So, the gravitational force between them is
[tex]F=(6.67\cdot 10^{-11})\frac{(10)(20)}{5^2}=5.34\cdot 10^{-10} N[/tex]