Is Kilogram Force the Same as Kilogram Mass?

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Homework Help Overview

The discussion revolves around the relationship between mass measured in kilograms and weight measured in kilogram-force (kgf), particularly in the context of gravitational force on Earth. Participants are exploring the conversion between these two units and questioning the underlying principles of force and mass.

Discussion Character

  • Conceptual clarification, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to understand how to convert mass in kilograms to weight in kgf, with some expressing confusion about the equivalence of these units. Questions arise regarding the formula F=mg and the interpretation of force in Newtons versus kilogram-force.

Discussion Status

The discussion is active, with participants providing insights and corrections to each other's reasoning. Some guidance has been offered regarding the definitions of force and the correct application of the gravitational constant, indicating a productive exploration of the topic.

Contextual Notes

There appears to be confusion regarding the definitions of Newtons and kilogram-force, as well as the role of gravitational acceleration in these conversions. Participants are also grappling with the implications of these definitions on their calculations.

Dell
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how do i convert a mass in kilograms to a weight in kgf??
should it not just be the same value?? is that not the idea of kgf??

for a weight on earth

if F=mg---> N=kg*9.8

and i know that
9.8N=1kgf

therefore
9.8N=9.82kg

giving me 1kgf=9.82Kg

this doesn't seem right to me,
can someone please explain it, thanks
 
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Dell said:
if F=mg---> N=kg*9.8

No. More like F=9.8N, or N=F/9.8.
 
how so, that is my whole problem,

if F=mg for example and

F is Newtons
m is Kg
g=9.8 m/s2

then Newtons=Kg*9.8

why is this incorrect??
 
Dell said:
how do i convert a mass in kilograms to a weight in kgf??
should it not just be the same value?? is that not the idea of kgf??

for a weight on earth

if F=mg---> N=kg*9.8
Here's your mistake. A Newton is the force required to accelerate 1 kg at 1 m/s2, not 9.8 m/s2.
 

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