Question

Two objects, one with a mass of 90.0kg and the other with a mass of 70.0kg experience a gravitational force of attraction of 5.50x10-7N. How far apart are their centers of mass?0.874m0.104m0.764m0.0921m

Answer 1

We will have the following:

`\begin{gathered} 5.50\ast10^(-7)N=((6.67\ast10^(-11)m^3\ast kg^(-1)\ast s^(-2))(90kg)(70kg))/(r^2)\Rightarrow r^2=0.764081818...m^2 \\ \\ \Rightarrow r\approx0.874m \end{gathered}`

So, the distance is approximately 0.874 m.