Home
Class 12
PHYSICS
The length of second hand in a watch is ...

The length of second hand in a watch is 1 cm. The change in velocity of the tip in 15 second is

A

Zero

B

`pi//30sqrt2`(cm)/(s)

C

`pi/30 (cm)/s`

D

`(2pi//30sqrt2)(cm)/s`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    MBD PUBLICATION|Exercise QUESTION BANK|338 Videos

  • WAVE OPTICS

    MBD PUBLICATION|Exercise QUESTION BANK|218 Videos

Similar Questions

Explore conceptually related problems

A bullet is fired from a rifle with velocity of 750 m/s. If the length of the rifle barrel is 60 cm. Calculate average velocity of the bulet in the barrel

The strain produced in a wire of length 60 cm is 1% . The change in the length of the wire is

A scooter is going towards east at 10m/s turns right through an angle of 90^@ . If the second remains unchanged in taking this turn.what is the change in the velocity of scooter ?

The velocity time graph of a body in a straight line is as in fig. The displacement of the body in 5 seconds is

A particle of a mass 2 kg moving with a constant acceleration covers a distance of 10 m in the third second and 16 m in the 4th second. What is the initial velocity of the particle?

What is the length of second's pendulum ?

MBD PUBLICATION-VECTOR ANALYSIS-QUESTION BANK
  1. Out of following set offorces the resultant which can not be zero

    Text Solution

    |

  2. If abs(vec v1+vec v2)=abs(vec v1- vec v2) and vec v2 is finite thus

    Text Solution

    |

  3. The length of second hand in a watch is 1 cm. The change in velocity o...

    Text Solution

    |

  4. A car moves 30m/north, then 20 m east, then 30sqrt2 m south west. his ...

    Text Solution

    |

  5. In going from one city to another a car travels-75 km north, 60 km nor...

    Text Solution

    |

  6. A particle is simultaneously acted upon two forces equal to 4 N and 3 ...

    Text Solution

    |

  7. To a person going east in a car with velocity of 25km/h, a train appea...

    Text Solution

    |

  8. Rain is falling vertically downward with a velocity of 4 km/hr. A pers...

    Text Solution

    |

  9. A charged particle of mass m and charge 'q' is projected with a veloci...

    Text Solution

    |

  10. A point of application of a force vec F= 5hati - 3hatj +2hatk is moved...

    Text Solution

    |

  11. which is a scalar quantity

    Text Solution

    |

  12. The maximum value of resultant of two forces is 5 N and minimum is 1 N...

    Text Solution

    |

  13. The resultant of two forces each of magnitude P acting at a point is s...

    Text Solution

    |

  14. The resultant of two forces 3P and 2P is R. If the first vector is dou...

    Text Solution

    |

  15. For two equal non parallel forces acting at a point the square of the ...

    Text Solution

    |

  16. P and 2P are two forces acting on a particle. When the first force is ...

    Text Solution

    |

  17. The distance between the point P(3,4,-7) and Q (-2,5,10) is

    Text Solution

    |

  18. The vector vec P =hati+ 12hatj + hatk and vec Q= 2hati -a hatj + 4hatk...

    Text Solution

    |

  19. The condition in which the vectors vec P=3hati - 5 hatj + 5hatk and ve...

    Text Solution

    |

  20. If when two equal non parallel forces acting at a point the square of ...

    Text Solution

    |