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1. The movable left-hand jaw of the bar clamp can be slid along the frame to increase the capacity of the clamp. To prevent slipping of the jaw on the frame when the clamp is under load, the dimension x must exceed a certain minimum value. For given values of a and b and a static friction coefficient µ,s, specify this design minimum value of x to prevent slipping of the jaw.
2. A uniform block of mass m is at rest on an incline (). Determine the maximum force P which can be applied to the block in the direction shown before slipping begins. The coefficient of static friction between the block and the incline is µ,s. Also deter- mine the angle /3 between the horizontal direction of P and the direction of initial movement of the block.
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