Home
Class 12
PHYSICS
A particle moving with an angular veloci...

A particle moving with an angular velocity of `200` rad s^(-1)` starts de-accelerating at a rate of `2` rad `s^(-2)`. Calculate the time in which it will come to rest.

Text Solution

Verified by Experts

Using `omega=omega_(0)+alphat`
`implies0=200-2t`
`impliest=(200)/(2)=100` second
`omega = omega_(0) + alpha t`
Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE|Exercise Assignment (Section - J) Aakash Challengers Questions|13 Videos

  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    AAKASH INSTITUTE|Exercise Assignment (Section-D (Assertion and reason))|5 Videos

  • TEST 1

    AAKASH INSTITUTE|Exercise EXERCISE|9 Videos

Similar Questions

Explore conceptually related problems

A wheel is rotating with an angular velocity of 3 rad s^(-1) . If the angular acceleration is 2 rad s^(-1) then calculate its angular velocity after 5 second.

A solid disc is rotating at an angular speed of 20 rad/s. It is decelerated at a constant rate of "2 rad/s"^(2) . Through what angle the disc will turn before coming to rest?

The angular velocity of a rigid body is 24 rad s^(-1) , Calculate the time it will take to rotate 72 rad.

A particle is moving with a constant angular acceleration of 4rad//s^(2) in a circular path. At time t=0 , particle was at rest. Find the time at which the magnitudes of centripetal acceleration and tangential acceleration are equal.

A body rotating have an angular velocity of 300 rpm and its angular acceleration is pi/20((Rad)/ s^2) .Revolutions done by this particle in 10 sec is

The angular velocity of a particle changes from 100 rad s^(-1) to 200 rad s^(-1) in 4s . Calculate the angular accelertion of the particle ?

A wheel starting from rest ia rotating with a constant angular velocity of 3 rad s^-1 . What is its angular acceleration after 4 s?

Two particles A and B move on a circle Initially, particles A and B are diagonally opposite to each other. Particle A moves with angular velocity pi rad s^-1 and angular acceleration pi//2 rad s^-2 and particle B moves with constant angular velocity 2 pi rad s^-2 . Find the time after which both the particlsd A nad B will collide.

The angular velocity of circular disc of radius 2cm is 20 rad s^(-1) . Calculate the linear velocity of the disc.

A particle executes a SHM of angular velocity 2 rad/s and maximum acceleration of 8 m//s^(2) . What is the path length of the oscillator ?

AAKASH INSTITUTE-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Try Yourself
  1. Calculate the moment of inertia of the given rod about an axis CD

    Text Solution

    |

  2. What is the angular acceleration of a particle if the angular velocity...

    Text Solution

    |

  3. A particle moving with an angular velocity of 200 rad s^(-1) starts de...

    Text Solution

    |

  4. The angular velocity of a motor wheel changes from 180 rpm to 300 rpm ...

    Text Solution

    |

  5. The angular velocity of flywheel changes from 240 rpm to 120 rpm in 6 ...

    Text Solution

    |

  6. Calculate the angular velocity with which a wheel is rotating. If its ...

    Text Solution

    |

  7. Calculate the instantaneous power of a body rotating with angular velo...

    Text Solution

    |

  8. Find the speed of the block after moving down by x

    Text Solution

    |

  9. What are the other forces acting on the disc?

    Text Solution

    |

  10. Find the acceleration of the pulley after 5s, if the system is release...

    Text Solution

    |

  11. What is the torque acting on a body moving with constant angular veloc...

    Text Solution

    |

  12. Compute the torque acting on a wheel of moment of inertia 10kgm^(2), m...

    Text Solution

    |

  13. An ice skater having moment of inertia l rotating with angular speed o...

    Text Solution

    |

  14. The moment of inertia of a body moving with angular velocity omega dec...

    Text Solution

    |

  15. Find the kinetic energy of the disc when it is fallen of a height h.

    Text Solution

    |

  16. A sphere and a cylinder have the same radius and the same mass. They s...

    Text Solution

    |

  17. Two spheres look identical and have the same mass. However one is holl...

    Text Solution

    |

  18. Will the ring roll purely if force F is applied in between topmost poi...

    Text Solution

    |

  19. If the ring slips then will it be backward slipping or forward slippin...

    Text Solution

    |

  20. Will it be forward slipping or backward slipping if h gt (I(cm))/(mR) ...

    Text Solution

    |