6/7 The light bar is used to support the 50-kg block in its vertical guides. If the coefficient of static friction is 0.30 at the upper end of the bar and 0.40 at the lower end of the bar, find the...

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Extracted text: 6/7 The light bar is used to support the 50-kg block in its vertical guides. If the coefficient of static friction is 0.30 at the upper end of the bar and 0.40 at the lower end of the bar, find the friction force acting at each end for x = 75 mm. Also find the maximum value of %3D x for which the bar will not slip. Ans. FA = FB = 126.6 N, xmax = 86.2 mm %3D %3D 50 kg A 300 mm