Calculate the gravitational force between a 10 kg ball and 20 kg ball
placed at a separation of 5 m.

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:

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:

is the mass of the 1st ball

is the mass of the 2nd ball

r = 5 m is the separation

So, the gravitational force between them is

true tan speed = ang vel x radius