Question

Two 6.0 kg masses are separated by a distance of 4.0 m. What is the magnitude of the gravitational force between the two masses?

Answer 1

Answer: $1.50075*10^{-10}\ N$

Explanation:

For this exercise we need to use the Gravitational Force Formula. This is:

$F_g=G(\frac{m_1*m_2}{r^2})$

Where $F_g$ is the gravitational force between two objects, $G$ is the gravitational constant ($G=6.67*10^{-11}\ \frac{Nm^2}{kg^2}$) and $r$ is the distance between the objects.

We know that:

$m_1=6.0\ kg\\\\m_2=6.0\ kg\\\\r=4.0\ m$

Therefore, in order to calculate the magnitude of the gravitational force between the two masses, we must substitute these values into the formula.

Then we get:

$F_g=(G=6.67*10^{-11}\ \frac{Nm^2}{kg^2})(\frac{(6.0\ kg)(6.0\ kg)}{(4.0\ m)^2})\\\\F_g=1.50075*10^{-10}\ N$