Question

Two spherical objects have masses of 100 kg and 200 kg. Their centers are

Answer 1

Answer:

8.34 x 10⁻⁶N

Explanation:

Given parameters:

Mass 1  = 100kg

Mass 2 = 200kg

Distance of separation  = 40cm = 0.4m

Unknown:

Gravitational force of attraction between them  = ?

Solution:

To solve this problem, we use the expression below which is derived from the Newton's law of universal gravitation:

           Fg  = $\frac{G x mass 1 x mass 2}{d^{2} }$

G is the universal gravitation constant = 6.67 x 10⁻¹¹

d is the separation

 Now;

  Fg = $\frac{6.67 x 10^{-11} x 100 x 200}{0.4^{2} }$   = 8.34 x 10⁻⁶N