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Actually I was reading Friction and in Rotation also I came across this term 'slipping'.Though I know the general meaning of slipping but I dont understand how it works.Like how is friction related to slipping and how is slipping important in rotation sums.PLease explain the concept nicely if possible.
P.S.:- I asked Subho about it.Though I didnt understand much.Asking again to post your knowings abou it :P
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3 Answers
1Rolling:
point of contact has the same velocity and acceleration as the surface.
Slipping:point of contact has relative vel wrt surface
1therefore when the body topples,F<μmg and it requires less effort to move the body.
when a body slides or skids
Frictional force=μmg (and not less than μmg).
Consider:
for rolling:
vcm
-ωr=vs
and for acceleration when the body rolls:
acm-αr=as