What are the mass and the weight of a body?



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The mass and weight are two different magnitudes, and we should not confuse.

  • Mass: is the amount of material that has a body.
  • Weight: is the force that attracts the earth towards its center to a body.





As weight is a force, considering we get the following laws:


tabular{11}{11}{{P={G*M*m}/R^2}}

A body has more weight at the poles than in the Ecuador, because it varies the distance from teh center of the Earth.


tabular{11}{11}{{P={m*g}}}

We weight more on Earth´s surface than in the peak of a mountain, because “g” varies whit altitude an our mass is always the same.

 
mass_and_weight.txt · Última modificación: 24/04/2017 13:13 (editor externo)
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