static rigid bodies

[tribal sierra]

what is Fa and Fmax????

i have never seen or learnt about this in class

we just use F

Fa is less than Fmax ???

also why do we not consider Rb?

[tribal sierra]

<@&791435371564892232>

[zenith silo]

Fmax is friction

And because B is smooth you don’t need to consider frictional forces on B

Which is why only Fa is relevant

[tribal sierra]

????

cant we just call it F???

if Fmax is friction then what is Fa?

[zenith silo]

Force at A

[tribal sierra]

There is only 1 frcitional force here so why cant we just say F

[zenith silo]

Because there would also be a force at B

[tribal sierra]

but the wall is smooth

so there is not friction on B

[zenith silo]

Doesn’t mean that there isn’t a force

[tribal sierra]

thats just Rb

?

wait no thats the norma;

if there was friction on B it would act vertically upwards