dynamics i: force

diffrance mass and weight

discussionsummarypracticeproblems

Summary

  • Weight is the force of gravity on an object.
Mass vs. Weight
massweight
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)

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