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A side view of a simplified form of vert...

A side view of a simplified form of vertical latch B is as shown. The lower member A can be pushed forward in its horizontal channel. The sides of the channels are smooth, but at the inteifaces of A and B, which are at `45^(@)` with the horizontal, there exists a static coefficient of friction `mu= 0.4`. What is the' minimum force F (in N) that must be applied horizontally to A to start motion of the latch B if it has a mass `m = 0.6` kg question

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