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In physics, however, there is an important distinction. Weight is the pull of Earth on an object. It depends on the distance from the center of Earth. Unlike weight, mass does not vary with location. The mass of an object is the same on Earth, in orbit, or on the surface of the Moon.
Defintion: Weight. The gravitational force on a mass is its weight. We can write this in vector form, where \(\vec{w}\) is weight and m is mass, as \[\vec{w} = m \vec{g} \ldotp \label{5.8}\] In scalar form, we can write \[w = mg \ldotp \label{5.9}\]
28 Σεπ 2024 · While it sounds tricky, calculating weight from mass is very straightforward if you know which formula to use. This article will teach you that formula, plus how to use it when you encounter physics problems in class.
The weight of an object is the force of gravity on the object and may be defined as the mass times the acceleration of gravity, w = mg. Since the weight is a force , its SI unit is the newton. Density is mass/volume.
Calculate mass: how much matter there is in an object; and weight: the pull of gravity on the object. Use Newton’s Second Law for acceleration of free fall.
The weight of an object is related to its mass by the following formula: 𝑊 = 𝑚 𝑔, where 𝑊 is the weight of the object, 𝑚 is the mass of the object, and 𝑔 is the gravitational field strength at the position of the object. Weight is a force, so its SI unit is newton.
Using Galileo’s result and Newton’s second law, we can derive an equation for weight. Consider an object with mass m falling toward Earth. It experiences only the downward force of gravity, which is the weight [latex]\mathbf{\overset{\to }{w}}[/latex].
