In nature, four fundamental forces govern the interactions of all matter and energy. These forces are the strong nuclear force, the weak nuclear force, the electromagnetic force, and the gravitational force. Without these forces, the universe as we know it would disintegrate, as they are responsible for every push, pull, and interaction that causes objects to move or deform.
A force, according to Sir Isaac Newton, is any interaction that, when unopposed, will change the motion of an object. Essentially, a force can cause an object of mass m to accelerate with an acceleration a. This is encapsulated in Newton’s second law of motion, F = ma.
Gravitational Force is one of nature’s four fundamental forces and is universally recognized as the weakest among them. Despite its weakness, gravitational force is the force that determines our weight and dictates the trajectory of a basketball when it is tossed.
Gravitational force is the attractive force that arises from gravitational interactions. According to Newton’s law of gravity, the force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. The formula for gravitational force is:
F = G(m1m2)/R2
where:
The gravitational constant G has a very small value, which results in a relatively weak gravitational pull, especially when compared to the other fundamental forces. This is why gravitational interactions are significant only when at least one of the objects has a large mass, such as planets, stars, or galaxies. At the atomic level, gravitational forces are negligible.
The impact of gravitational force can be observed and measured in various ways:
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