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GATE2018-1-53

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The schematic of an external drum rotating clockwise engaging with a short shoe is shown in the figure. The shoe is mounted at point Y on a rigid lever XYZ hinged at point X. A force $F=100$ N is applied at the free end of the lever as shown. Given that the coefficient of friction between the shoe and the drum is $0.3$, the braking torque in (Nm) applied on the drum is _____ (correct to two decimal places)

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