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A box of mass 200 kg is kept on a rough ...

A box of mass 200 kg is kept on a rough horizontal floor having coefficient of static friction `mu_(s)=0.25` and coe3fficient kinetic friction `mu_(k)=0.2.` Find the work done by a mam to slide the body slowly through 20 m with a minimum ofrce. Also find the magnitude of the minimum force.

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Knowledge Check

  • A block of mass 2 kg is kept on a rough horizontal floor an pulled with a force F. If the coefficient of friction is 0.5. then the minimum force required to move the block is :-

    A
    10 N
    B
    `100/11 N`
    C
    `100/8 N`
    D
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