Question

What is the gravity formula?

Answer 1

Hint: Gravity is widely used across different topics in physics. The value of gravity is fixed, and it is used directly in many formulas to get the final answer. To explain the formula for gravity, it's better to explain gravity first, which will help to build the base for understanding the formula of gravity, as many times the value of gravity is confused with the value of gravitational constant.

Complete answer:
Gravity is referred to as the force that is responsible for the attraction between two bodies towards each other or towards the earth. For instance, it is the same force that causes an apple to fall from the tree on the ground. Similarly, it is what allows the planets to orbit the sun. Hence, one can also say that the more massive an object is, the stronger will be its gravitational pull.
The theory of gravity was discovered by Sir Isaac Newton in the 1680s, which stated that gravity acts on all matter plus it is a function of both mass distances.
The law of gravity applies to almost everything that exists in the universes which has a mass. Any two objects that have mass attract one another just like any two-magnet kept near to each other will. Moreover, the attractions become small or less even zero sometimes when the distance is large enough.
As gravity is the force of attraction between two entities, the formula becomes the force of attraction times the gravitational constant which will be inversely related to the square of the distance between the entities. Therefore, our equation will come as:
$\text{Force (F)}\,\text{=}\,\dfrac{GMm}{{{r}^{2}}}$
where,
‘G’ is the gravitational constant
‘M’ and ‘m’ are the mass of two different objects, and
‘r’ is the distance between the objects.

Note:
Gravity is the backbone of physics, in other ways it can be said as without gravity many concepts in physics cannot be explained and understood. If a student understands what is gravity and how it works, then it will be easy for the student to understand many topics in physics, as in many topics gravity is used directly or indirectly, without which it is impossible to understand that topic.