ellomoto135
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What are the equations that can be used to calculate friction, be detailed i don't know much about.
What are the equations to calculate friction
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welcome to pf!
hi ellomoto135! welcome to pf!
there isn't much to say …
if the surfaces aren't moving, and aren't "about to move", the friction force is simply part of the reaction force … you calculate it exactly as if the surfaces were fixed together
if they are moving, you have to look up the kinetic (dynamic) coefficient of friction, µk, in a table (or it'll be given in an exam question), and then …
if they are "about to move", you have to look up the static coefficient of friction, µs, in a table (or it'll be given in an exam question), and then …
hi ellomoto135! welcome to pf!
there isn't much to say …
if the surfaces aren't moving, and aren't "about to move", the friction force is simply part of the reaction force … you calculate it exactly as if the surfaces were fixed together
if they are moving, you have to look up the kinetic (dynamic) coefficient of friction, µk, in a table (or it'll be given in an exam question), and then …
the friction force is µkN (where N is the normal force)
if they are "about to move", you have to look up the static coefficient of friction, µs, in a table (or it'll be given in an exam question), and then …
the friction force is µsN (where N is the normal force) 