Home
Class 11
PHYSICS
The length of second 's hand of a watch ...

The length of second 's hand of a watch is 1 cm , what is the change in velocity of its tip in 15 seconds ?

Text Solution

Verified by Experts

The correct Answer is:
`(sqrt(2)pi)/(30) cm *s^(-1)`
Promotional Banner

Topper's Solved these Questions

  • VECTOR

    CHHAYA PUBLICATION|Exercise PROBLEM SET-II|34 Videos

  • VECTOR

    CHHAYA PUBLICATION|Exercise PROBLEM SET-II (Hot Numerical Problems)|24 Videos

  • VECTOR

    CHHAYA PUBLICATION|Exercise EXERCISE (Short Answer Type Questions-II)|2 Videos

  • THERMOMETRY

    CHHAYA PUBLICATION|Exercise EXAMINATION ARCHIEVE - WBJEE|1 Videos

  • VISCOSITY AND SURFACE TENSION

    CHHAYA PUBLICATION|Exercise EXERCISE (CBSE SCANNER)|9 Videos

Similar Questions

Explore conceptually related problems

What is the angular velocity of the second hand of a clock?

The length of a minute-hand of a clock is 10 cm . How much distance will its extremity move in 20 minutes ?

A body of mass 5g is moving in a straight line with a velocity of 10 cm *s^(-1) . A force of 10 sqrt(2) dyn is applied on the body at an angle of 45^@ with the line of motion. What is the change in kinetic energy of the body in 1 st second ?

Is the angular velocity of rotation of hour hand of a watch greater or smaller than the angular velocity of earth's rotation about its axis? Explain.

A circular disc is rotating about its natural axis with angular velocity of 10 rad/s . A second disc of same mass is joined to it coaxially. If the radius of the second disc is half of the first one, then what is the angular velocity if they rotate together ?

A body is thrown vertically upwards. After attaining half of its maximum height its velocity becomes 14 "m.s"^(-2) . (i) How high will the body rise? (ii)What will be the velocity of the body 1 s and 3 s after its projection? (iii)What is the average velocity of the body in the first haIf second?

CHHAYA PUBLICATION-VECTOR-PROBLEM SET-I
  1. If vecA=4hati+3hatj is a vector, find its magnitude and direction . W...

    Text Solution

    |

  2. At what angle the two forces (vecF1 +vecF2) and (vecF1-vecF2) act so t...

    Text Solution

    |

  3. The length of second 's hand of a watch is 1 cm , what is the change i...

    Text Solution

    |

  4. A particle moves along a straight line by a metre and then makes an an...

    Text Solution

    |

  5. A person moves 30 m towards north, then 20 m towards east and finally ...

    Text Solution

    |

  6. Two forces, each of magnitude P , are inclined at 60^@ .Find the magn...

    Text Solution

    |

  7. What is the magnitude of the component of a force of magnitude 50dyn a...

    Text Solution

    |

  8. P and sqrt(3) P are two forces acting in north -west and north-east d...

    Text Solution

    |

  9. Two forces of magnitudes P and 2Q are inclined to each other at an an...

    Text Solution

    |

  10. vecR is the resultant of two vectors vecP and vecQ. When vecQ is rever...

    Text Solution

    |

  11. Calculate the resultant of the following forces at a point , making us...

    Text Solution

    |

  12. Calculate the resultant of the following forces at a point , making us...

    Text Solution

    |

  13. A child pulls a rope attached to a stone with a force of 60 N . The r...

    Text Solution

    |

  14. A child pulls a rope attached to a stone with a force of 60 N . The r...

    Text Solution

    |

  15. A car is moving at 24 km *h^(-1) towards east and another car is movin...

    Text Solution

    |

  16. Rain is falling vertically at 4 km *h^(-1) . What will be the apparen...

    Text Solution

    |

  17. A man can swim at the rate of 4 km *h^(-1) in still water. At what ...

    Text Solution

    |

  18. A river is 150 m wide and has a current of 1 m*s^(-1). A boat is movi...

    Text Solution

    |

  19. A boat is moving at 12 km *h^(-1) towards north and another is moving ...

    Text Solution

    |

  20. A ship is moving at 40 km*h^(-1) towards west. Another is proceeding ...

    Text Solution

    |