Have you been mixing up the meaning of mass and weight? When you're not clear about the concepts, it's quite simple to fall into this trap.
Have you ever tried and failed to lose weight? Don't be depressed; you just might be on the wrong planet! Technically, the weight of an object varies depending on its location. If you choose to go to the moon to test this idea, you'll find that in just a few hours, you'll have lost two-thirds of your weight. Look out, fat shamers!
The weight formula is as follows:
W = mg
Where ‘w’ is weight and ‘m’ is the mass of the object, and ‘g’ is the acceleration due to gravity, which is 9.8 m/s2.
Because weight is a force, it has the same SI unit as a force. The SI unit for weight is Newton (N).
Newton's law theory states that a free-falling object has an acceleration "g" as the magnitude may be used to deduce the relationship between weight and mass.
If a 1-kilogram item descends with an acceleration due to gravity (a) of 9.8 m.s-2, the magnitude of the force can be calculated using F = ma. Therefore, the value of F here would be 9.8 newtons. It may be deduced from the weight-mass relationship that an object with a mass of 1kg will have a weight of 9.8N.
1. Is weight in kg or N?
Weight is a force and therefore is calculated in newtons.
2. Is mass or weight in Newtons?
Weight being a force is calculated in Newtons.
3. Is weight and mass the same?
No, mass is the amount of matter that every existing object contains and is constant, whereas weight is a force that is exerted on an object and can be variable.
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