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A heavy box of mass 20 kg is placed on ...

A heavy box of mass 20 kg is placed on a horizontal surface . If coefficient of kinetic friction between the box and the horizontal surface . Is 0.25 calculate the force of kinetic friction Also calculate acceleration produced under a force of 98 N applied horizontally ?

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The situation is shown in ure. In the vertical directioin there is no acceleration so
N=mg
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HC VERMA-FRICTION-Exercises
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