The Physics
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Opus in profectus

Weight

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Summary

Mass vs. weight
mass weight
a measure of inertia
(resistance to change in motion)
the force of gravity acting
on an object due to its mass
invariant
(does not change with location)
variable
(depends upon location)
scalar
(has magnitude only)
vector
(directed downward)
kg
(SI base unit)
N
(SI derived unit)