Home
Class 11
PHYSICS
A disc, initially at rest, starts rotati...

A disc, initially at rest, starts rotating about its own axis/ with a constant angular acceleration of 0*2 rad/s2. The time taken by the disc to rotate by 10 rad (in seconds) is

A

7.07

B

10

C

14.14

D

100

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • System of particles & rotational Motion

    SL ARORA|Exercise EXERCISE|353 Videos

  • ROTATIONAL MOTION

    SL ARORA|Exercise Problem for self practice|90 Videos

  • Thermal Properties of Matter

    SL ARORA|Exercise Exercise|449 Videos

Similar Questions

Explore conceptually related problems

A stationary wheel starts rotating about its own axis at uniform rate amgular acceleration 8rad//s^(2) .The time taken by its to complete 77 rotation is

A disc initially at rest , is rotated about its axis with uniform angular acceleration . In the first 2 s, it rotates an angle theta . In the next 2s, the disc rotates through an angle

A disc of mass 1 kg and radius 10 cm is rotating about its axis with an anuglar velocity of 2 rad/s. The linear momentum of the disc,

A stationary wheel starts rotating about its own axis at constant angular acceleration. If the wheel completes 50 rotations in first 2 seconds, then the number of rotations mades by it in next two seconds is

A wheel starting from rest,rotates with a uniform angular acceleration of 2rad/s^(2) .Then the number of rotations it performs in tenth second is

A circular disc is rotating about its own axis, the direction of its angular momentum is

A homogeneous disc of mass 2 kg and radius 15 cm is rotating about its axis with an angular velocity of 4 rad/s. the linear momentum of the disc is

A disc rotates about its axis with a constant angular accelertion of 2 rad//s^(2) . Find the radial and tangential accelerations of a particle at a distance of 10 cm from the axis at the end of the fourth second after the disc starts rotating.

A disc rotates about its axis with a constant angular acceleration of 4rad/s^2 . Find the radia and tangential acceleration of a particle at a distance of 1 cm from the axis at the end of the first second after the disc starts rotating.

A stationary wheel starts rotating about its own axis at an angular acceleration 5.5 rad//s^(2) . To acquire an angular velocity 420 revolutions per minute , the number of rotations made by the wheel is

SL ARORA-System of particles & rotational Motion-EXERCISE
  1. Two racing cars of masses m and 4m are moving in circles of radii r an...

    Text Solution

    |

  2. Two wheels having radii in the ratio 1 : 3 are connected by a common b...

    Text Solution

    |

  3. A disc, initially at rest, starts rotating about its own axis/ with a ...

    Text Solution

    |

  4. A car is moving at a speed of 72 km//h. The diameter of its wheels is ...

    Text Solution

    |

  5. The motor of an engine is rotating about its axis with an angular ...

    Text Solution

    |

  6. Angular acceleration alpha of a body is given by the relation a = 4at^...

    Text Solution

    |

  7. The front wheel on an ancient bicycle has radius 0.5 m. It moves with ...

    Text Solution

    |

  8. A ring of radius R is first rotated with an angular velocity omega and...

    Text Solution

    |

  9. Which one is a vector quantity?

    Text Solution

    |

  10. If force vector is along X-axis and radius vector is along Y-axis then...

    Text Solution

    |

  11. Find the torque of a force vecF= -3hati+hatj+5hatk acting at the poin...

    Text Solution

    |

  12. If force acts on a body, whose line of action does not pass through it...

    Text Solution

    |

  13. Can the couple acting on a rigid body produce translatory motion ?

    Text Solution

    |

  14. In order to balance a see-saw of total length 10.0m, two kids weighing...

    Text Solution

    |

  15. a uniform beam, of length L and mass m = 1.8 kg, is at rest on two sca...

    Text Solution

    |

  16. An automobile engine develops 100 kW when rotating at a speed of 1800 ...

    Text Solution

    |

  17. Angular momentum is

    Text Solution

    |

  18. Which is a vector quantity

    Text Solution

    |

  19. Dimensions of angular momentum are

    Text Solution

    |

  20. Joule-second is the unit of

    Text Solution

    |