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Physica

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a man pushes a box of mass 5 kg in a horizontal direction by 10 N force on the surface through a distance of 5m if the cofficien of kinetic friction is 0.2 the total work done on the box is

  • Physica -

    Sice the friction force is
    F=F(fr)=μmg,
    the work is
    W=F(fr)•s= μmgs

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