what kind of friction comes into play : a.) when a block of wood kept on table moves slowly. b). when a block of wood kept on table just tends to move . c). when a block of wood kept on cylindrical iron rod moves ?
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a.static friction
b.limiting friction but when it starts moving it is kinetic friction
c.rolling friction
b.limiting friction but when it starts moving it is kinetic friction
c.rolling friction
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