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i have a concept related confusion...
if a body is in pure rolling motion, its angular momentum remains conserved (bcoz friction passes through point of contact) , my question is that is the linear momentum also remain conserved??? plz explain all about it !
linear momentum is definitely conserved in pure rolling.
it is because of the force of friction, that the body rolls. the friction only helps to get the body rolling. and it causes no hindrance to obstruct the forward motion of the body.
if some force had opposed the forward motion, then only the energy would not have been conserved.
HOPE THIS HELPS!!!!!!!!!!!!!!!!!!!
Considering the body as a point object,the rate of change of velocity relative to the surface in contact is zero, so momentum is conserved,as the in point obects the whole mass is constricte to that particular point.
yes i got the point.. thanks everyone !
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