What is the minimum coefficient of static friction

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Reference no: EM13930302

1. The tongs are designed to handle hot steel tubes which are being heat-treated in an oil bath. For a 20° jaw opening, what is the minimum coefficient of static friction between the jaws and the tube which will enable the tongs to grip the tube without slipping?

2. The light bar is used to support the 50-kg block in its vertical guides. If the coefficient of static fric- tion 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 x for which the bar will not slip

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Reference no: EM13930302

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