Problem $08\mathrm{.}050-$ Two wedges used to move and position a block

Two $6$ wedges of negligible weight are used to move and position the $970-kg$ block. Consider the coefficient of static friction to be $0\mathrm{.}30.$

Problem $08\mathrm{.}050.$b $-$ Two wedges used to move and position a block

Knowing that the coefficient of static friction is $0\mathrm{.}30$ at all surfaces of contact, determin $lon$ the smallest force $P$ that should be applied as shown to one of the wedges.

The smallest force that should be applied to the wedge is $$ N $$