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A stone of mass 20g is tied to one end o...

A stone of mass 20g is tied to one end of a strong string by a boy. He make it to revolve on a circular path, then work done by him would be ………… joule.

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The correct Answer is:
zero
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KUMAR PRAKASHAN-WORK AND ENERGY -QUESTION & ANSWER (FILL IN THE BLANKS)
  1. 1 watt-second = ……….. Joule.

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  2. A stone of mass 20g is tied to one end of a strong string by a boy. He...

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  3. An object of mass 120g is taken upward at the height 5 m, then ………….. ...

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  4. Hetal having mass 50 kg climbs up 20 m height with an object of mass 3...

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  5. The gravitational acceleration on moon is one-sixth that on the earth....

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  6. An electric bulb of 60 W is used for 10 h per day ………….. Unit of elect...

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  7. A object of weight 40 N is made to fall freely towards the ground from...

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  8. 3730 watt = hp

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  9. A constant force of 1 N is applied on an object. The body displaces 1 ...

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  10. 1 watt-second = ……….. Joule.

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    |

  11. A stone of mass 20g is tied to one end of a strong string by a boy. He...

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    |

  12. An object of mass 120g is taken upward at the height 5 m, then ………….. ...

    Text Solution

    |

  13. Hetal having mass 50 kg climbs up 20 m height with an object of mass 3...

    Text Solution

    |

  14. The gravitational acceleration on moon is one-sixth that on the earth....

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    |

  15. An electric bulb of 60 W is used for 10 h per day ………….. Unit of elect...

    Text Solution

    |

  16. A object of weight 40 N is made to fall freely towards the ground from...

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    |

  17. 3730 watt = hp

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    |

  18. A constant force of 1 N is applied on an object. The body displaces 1 ...

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    |