Find the gravitational force of attraction between two spheres each of mass of 1000 kg. The distance between the centers of the spheres is 0.5 m. $(2.67 \times 10^{-4} N)$
Solution:
Mass = $m_{1} = m_{2}$= 1000 kg
Distance between the centers = d = 0.5 m
Gravitational constant = G = $6.673\times 10^{-11} Nm^{2}kg^{-2}$
Gravitational force = F = ?
F =$\frac{(G m_{1}m_{2})}{d_{2}}$
F = $6.673 \times (10) ^{-11}\times \frac{(1000 \times 1000)}{((0.5)}^{2})$