Home
Class 11
PHYSICS
The angular velocity of a flywheel chang...

The angular velocity of a flywheel changes with time as `omega =a-bt`, where a and b are constants. The angle through which it rotates before coming to rest is

A

`(a(-b))/(2a)`

B

`a^2/(2b)`

C

`(a^2-b^2)/(2b)`

D

`(a^2-b^2)/(2ab)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CALORIMETRY, THERMAL EXPANSION; HEAT TRANSFER

    PATHFINDER|Exercise QUESTION BANK|228 Videos
  • ELASTICITY

    PATHFINDER|Exercise QUESTION BANK|139 Videos

Similar Questions

Explore conceptually related problems

The magnetic flux linked with a coil varies with time t as phi=at^(2)+bt+c , where a, b and c are constants. The emf induced in the coil will be zero at a time of

The charge flowing through a resistance R varies with time t as Q=at-bt^(2) , where a and b are positive constants The total heat produced in R is - (A) (a^3R)/(3b) (B) (a^3R)/(2b) (C) (a^3R)/(b) (D) (a^3R)/(6b)

The position vector vecr of a particle with respect to the origin changes with time t as vecr =Athati-Bt^2hatj, where A and B are positive constants. Determine (ii) the nature of variation with time of the velocity and acceleration vectors, and also the moduli of them.

The position vector vecr of a particle with respect to the origin changes with time t as vecr =Athati-Bt^2hatj, where A and B are positive constants. Determine (i) the locus of the particle,

PATHFINDER-CIRCULAR MOTION-QUESTION BANK
  1. A wheel is subjected to uniform angular acceleration about its axis.In...

    Text Solution

    |

  2. The length of the seconds hand a watch is 10mm. What is the change in ...

    Text Solution

    |

  3. The angular velocity of a flywheel changes with time as omega =a-bt, w...

    Text Solution

    |

  4. Two racing cars of masses m1 and m2 are moving in circle of radii r1 a...

    Text Solution

    |

  5. A wheel is at rest, its angular velocity increases uniformly and becom...

    Text Solution

    |

  6. A particle moves along a circle of radius (20/pi) m with constant tang...

    Text Solution

    |

  7. When a particle moves in a circle with uniform speed

    Text Solution

    |

  8. The second's hand of a watch has length 6 cm. Speed of end point and m...

    Text Solution

    |

  9. Two particles P and Q are located ar distance rp and rq respectively f...

    Text Solution

    |

  10. Let a1 and a2 represent radial and tangential acceleration. The motion...

    Text Solution

    |

  11. In uniform circular motion, the quantity that remains constant is

    Text Solution

    |

  12. Which of the following statements is false for a particle moving in a ...

    Text Solution

    |

  13. If a particle moves in a circle describing equal angles in equal times...

    Text Solution

    |

  14. A body moves with constant angular velocity on a circle. magnitude of ...

    Text Solution

    |

  15. Cream gets separated out of milk when it is churned, it is due to

    Text Solution

    |

  16. A particle is kept fixed on a turntable rotating uniformly. As seen fr...

    Text Solution

    |

  17. A particle moves with deceleration along the circle of radius R so tha...

    Text Solution

    |

  18. A body is moving along the circumference of a circle of radius 'R' in ...

    Text Solution

    |

  19. A body completes one round of a circle of radius R in 20 second. The d...

    Text Solution

    |

  20. A particle is moving in a circle in a radius 'r' with a constant speed...

    Text Solution

    |