Question: The board can be adjusted vertically by tilting it up and sliding the smooth pin A along the vertical guide G. When placed horizontally, the

The board can be adjusted vertically by tilting it up and sliding the smooth pin A along the vertical guide G. When placed horizontally, the bottom C then bears along the edge of the guide, where the coefficient of friction is μs. Determine the largest dimension d which will support any applied force F without causing the board to slip downward.

Given:

μs = 0.4

a = 0.75 in

b = 6 in

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