Determine the friction force

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Reference no: EM13930483

1. A 500-kg log is being steadily pulled up the incline by means of the cable attached to the winch on the truck. If the coefficient of kinetic friction is 0.80 between the log and the incline and 0.50 between the cable and rock, determine the tension T which must be developed by the winch.

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2. Under the action of the applied couple M the 25-kg cylinder bears against the roller A, which is free to turn. If the coefficients of static and kinetic friction between the cylinder and the horizontal surface are 0.50 and 0.40, respectively, determine the friction force F acting on the cylinder if (a) M = 20 N · m and (b) M = 40 N · m.

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Reference no: EM13930483

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