A block of mass $50 \,kg$ can slide on a rough horizontal surface. The coefficient of friction between the block and the surface is $0.6$. The least force of pull acting at an angle of $30^°$ to the upward drawn vertical which causes the block to just slide is ........ $N$
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(d) For limiting condition $f = \mu R$
$F\sin 30^\circ = \mu (mg - F\cos 30^\circ )$,
By solving $F = 294.3\;N$
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