Question

Two cars each have a mass of 1050 kg. If the gravitational force between

them is 2. 27 x 10-7N, how far apart are they? G = 6. 67 x 10-11 N. (m/kg)2

Answer 1

Given: m1=m2=1050kg
Fg=2.27x10^-7 N
G=6.67x10^-11 N.m^2/kg^2

Unknown: r=?

Use Fg=G m1m2/r^2
Solve for r
r^2=G m1m2/Fg
r=sqrt(G m1m2/Fg)

Now substitute

r=sqrt[(6.67x10^-11) (1050)(1050)/(2.27x10^-7)
r=18m

Good luck hope this helps