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Q. |
## A flat footstep bearing 10 cm radius supports a load of 3 kN. The shaft runs at 600/π r.p.m. and co-efficient of friction is 0.1.The friction torque and frictional power in watts with uniform pressure are respectively. |

A. | 10 n-m and 400 watts |

B. | 20 n-m and 400 watts |

C. | 30 n-m and 600 watts |

D. | not possible to find for insufficient data |

Answer» B. 20 n-m and 400 watts |

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