Answer:
2.3733 x 10²⁰ N
Explanation:
mass of sun Ms = 1.99 x 10³⁰ kg
Mass of earth Me = 5.98 x 10²⁴ kg
Mass of moon m ' = 7.36 x 10²² kg
Mean distance between sun and earth r = 1.5x10¹¹ m
Mean distance between earth and moon r ' = 3.84 x10⁸ m
Gravitational constant G = 6.67 x 10⁻¹¹N m² / kg²
Gravitational force between earth and moon F = GMem' / r '²
Substitute values you get F = 1.9908 x 10²⁰ N
This force is towards earth.
Gravitational force between sun and moon is F ' = GMsm' /(r - r ' )²
Substitute values you get F ' = 4.3641x10²⁰ N
This force is towards sun.
Net force on moon F net = F ' - F
= 2.3733 x10²⁰ N
Direction : Towards sun