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A flat end foot-step bearing supports a vertical shaft of 150 mm diameter rotating at 10 rad/s. The shaft carriers a vertical load of 20kN. Assuming uniform pressure distribution and coefficient of uniform pressure distribution and coefficient or friction equal to 0.05, the power lost in friction is                                 

         (a) 500W                                    (b) 750W

       (c) 1000W                                   (d) 1125 W

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