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- Weight is a consequence of the universal law of gravitation: any two objects, because of their masses, attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
www.britannica.com/science/weight
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Why is weight a consequence of the universal law of gravitation?
The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.
This is how we will deal with weight force and gravitational forces in this class, but I thought it relevant to bring up why the moon goes around the earth, how this is connected to falling objects, because it demonstrates the power of fundamental ideas.
Weight is directly proportional to an object's mass and the acceleration due to gravity. The weight of an object can be calculated using the formula: weight = mass × acceleration due to gravity. In the metric system, weight is typically measured in newtons (N).
- The Universal Gravitation Equation
- Thinking Proportionally About Newton's Equation
- Using Newton's Gravitation Equation to Solve Problems
- The Universality of Gravity
But Newton's law of universal gravitation extends gravity beyond earth. Newton's law of universal gravitation is about the universality of gravity. Newton's place in the Gravity Hall of Fame is not due to his discovery of gravity, but rather due to his discovery that gravitation is universal. ALLobjects attract each other with a force of gravitatio...
The proportionalities expressed by Newton's universal law of gravitation are represented graphically by the following illustration. Observe how the force of gravity is directly proportional to the product of the two masses and inversely proportional to the square of the distance of separation. Another means of representing the proportionalities is ...
Knowing the value of G allows us to calculate the force of gravitational attraction between any two objects of known mass and known separation distance. As a first example, consider the following problem. The solution of the problem involves substituting known values of G (6.673 x 10-11 N m2/kg2), m1 (5.98 x 1024 kg), m2 (70 kg) and d (6.38 x 106 m...
Gravitational interactions do not simply exist between the earth and other objects; and not simply between the sun and other planets. Gravitational interactions exist between all objects with an intensity that is directly proportional to the product of their masses. So as you sit in your seat in the physics classroom, you are gravitationally attrac...
When they speak of “weightlessness” and “microgravity,” they are referring to the phenomenon we call “free fall” in physics. We use the preceding definition of weight, force →w due to gravity acting on an object of mass m, and we make careful distinctions between free fall and actual weightlessness.
Weight is measured in Newtons and mass is measured in kilograms. Weight is a force. And it's caused by the pull of gravity acting on a mass. Mass is the amount of matter in an...
