Question

What is the gravitational attraction between a 70 kilogram boy and a 60 kilogram girl

Answer 1

Answer:

$F=3.11\times 10^{-8}\ N$

Explanation:

Given that,

Mass of a boy is 70 kg

Mass of a girl is 60 kg

We need to find the force of gravitational attraction between them if they are 3 m away.

The formula for the gravitational force is given by :

$F=\dfrac{Gm_1m_2}{r^2}\\\\F=\dfrac{6.67\times 10^{-11}\times 70\times 60}{(3)^2}\\\\=3.11\times 10^{-8}\ N$

So, the force between them is $3.11\times 10^{-8}\ N$.