It obeys the Newton’s second law of motion in the form of centripetal force = centripetal acceleration x mass. Centripetal acceleration is the acceleration, which occurs due to the centripetal force. The centripetal force always acts on the direction of the immediate center of the motion. The gravitational force is measured in Newton.Ĭentripetal force is the force, which keeps the objects in a circular or any curved path. The force from object A on object B is as same as the force from object B on object A. The gravitational force by earth on an object is also known as the weight of the object on earth. Repulsion is not present in gravitational fields. Gravitational force only attracts object. This can be omitted using the gravitational field concept. This gives rise to the problem of time gap between interactions. The gravitational force is considered an action at a distance. For real life applications, they can be normal objects of any dimension and r is the displacement between the centers of gravity. The famous equation F = G M 1 M 2 / r 2 gives the strength of the gravitational force, where M 1and M 2 are point objects, and r is the displacement between the two objects. However, before him Johannes Kepler and Galileo Galilee laid out the foundation for him to formulate the gravity. Sir Isaac Newton was the first person to formulate gravity. In this article, we are going to discuss what centripetal force and gravitational force are, their similarities, the definitions of gravitational force and centripetal force, and finally the difference between centripetal force and gravitational force. It is required to have a good understanding in these concepts in order to excel in such fields. Both of these forces play a vital role in the study of fields such as astronomy, physics, space exploration, cosmology and many more. In nonlinear motions such as the planetary motion, a centripetal force is required. Gravitational force is one of the four fundamental forces of the universe.
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