a varing horizontal force f=at acts om block of mass m kept on smooth horizontal surface . an identical block is kept on the first block.the co efficient of firction between the blocks is k.the time after which the relative sliding between the blocks prevails is?(a is constant)

Dear aksh

maximum static friction force that can be act between the blosk is =kmg

slipping occure when force will exceed the max static friction force

so at=kmg

  t=kmg/a

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