Solve the following :


A block of mass $m$ slips on a rough horizontal table under the action of a horizontal force applied to it. The coefficient of friction between the block and the table is $\mathrm{g}$. The table does not move on the floor. Find the total frictional force applied by the floor on the legs of the table. Do you need the friction coefficient between the table and the floor or the mass of the table?


When block slips, the limiting friction force acts.

$f f_{\text {table }}=\mu N$

$f f_{\text {table }}=\mu m g$

Since the table remains at rest.

$f f_{\text {table }}=f f_{\text {ground }}$

$f f_{\text {ground }}=\mu m g$

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