Please if you can help at all it would be greatlyappreciated. I think this problem came from Vector Mechanicsfor Engineers, but i am not sure.
Determine how far "d" the man can walk up the plank withoutcausing it to slip. The coeffiecient of friction at A and Bis μs = 0.3. The man has a weight of 200lb anda center of gravity G as shown in figure 5. Neglect thethickness of the plank and its weight in the calculation.


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