Question

State the universal law of gravitation. b) What is the relation between force of attraction and distance between two objects? c) What is the unit of G?

Answer 1

Answer:-

(a) State the Universal Law of Gravitation.

→ The Universal Law of Gravitation states that every object in the universe attracts other objects through a Force which is indirectly proportional with the square of distance between them and is directly proportional with the product of their masses.

(b) What is the relation between force of attraction and distance between two objects?

→ Force of attraction is indirectly proportional with the square of distance between two objects.

$F \propto \frac{1}{d^2}$

(c) What is the Unit of “G”?

→ (G) stands for the Universal Gravitation constant. It's unit is $N \ m^2 \ {kg}^{-2}$.

Related:-

• The value of (G) was found by Henry Cavendish. The value is $6.673 \times {10}^{-11} Nm^2/kg^2$.
• The relation between (g) [acceleration due to gravity] and (G) is:-

$g = G \frac{M}{R^2}$

where,

1. M = Mass of Earth,
2. R = Radii of Earth.

@Imperius