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2003q9.m27.071 - MEEG 2003 Quiz#9.m27 A 20-lb concrete...

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MEEG 2003 Quiz #9.m27 A 20-lb concrete block is in equi- librium as shown, where µ s = 0.25 between the block and the incline. Determine the magnitude P of the applied horizontal force if (a) slip- ping of the block is assumed to impend, (b) tipping of the block is assumed to impend. In conclusion, what is the maximum critical value cr P that P is allowed to have and the block still remains in equili- brium?
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