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law of universal gravitation hyperphysics. Newtons Law of Universal Gravitation states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of the masses and inversely proportional to the square of the distance between them. In symbols the magnitude of the attractive force F is equal to G the gravitational constant a number the size of which depends on the system of units used and which is a universal constant multiplied by the product of the masses m1 and m2 and divided by the square of.
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Newtons law of universal gravitation is about the universality of gravity. ALL objects attract each other with a force of gravitational attraction. The forces on the two masses are equal in size but opposite in direction obeying Newtons third law.
The Law of Universal Gravitation states that every point mass attracts every other point mass in the universe by a force pointing in a straight line between the centers-of-mass of both points and this force is proportional to the masses of the objects and inversely proportional to their separation This attractive force always points inward from one point to the other.
Newtons Law of Universal Gravitation Cavendish and the Value of G The Value of g Nearly every child knows of the word gravity. In other words the Earth attracts objects near its surface to itself. The force is always attractive and acts along the line joining the centers of mass of the two masses. G is called the universal gravitation constant and the units of G are such that the m2in the denominator on the right hand side cancel out the kg2in the numerator cancel and the result should a force in Newtons.
