Problem

A rope of length

L

and mass

M

is being pulled on a rough horizontal floor by a constant horizontal force

F = Mg

. The force is acting at one end of the rope in the same direction as the length of the rope. The coefficient of kinetic friction between rope and floor is

1/2

. Then, the tension at the midpoint of the rope is a.

\frac{Mg}{4}

\frac{2Mg}{5}

\frac{Mg}{8}

\frac{Mg}{2}

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