Home
Class 11
PHYSICS
A triangular plate of uniform thickness ...

A triangular plate of uniform thickness and density is made to rotate about an axis perpendicular to the plane of the paper and (a) passing through A,(b) passing through B, by the application of the same force, F, at C (midpoint of AB) as shown in the figure. The angular acceleration in both the cases will be the same.

Text Solution

Verified by Experts

`tau=I_(a)`, therefore `alpha=tau/L`
`tau=` Force `xx` Perpendiclar distance
Torque is the same in both the cases. But since I will be different due to different mass distribution about the axis, therefore `alpha` will be different.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • RIGID BODY DYNAMICS 2

    CENGAGE PHYSICS|Exercise SCQ_TYPE|29 Videos

  • RIGID BODY DYNAMICS 2

    CENGAGE PHYSICS|Exercise MCQ_TYPE|14 Videos

  • RIGID BODY DYNAMICS 2

    CENGAGE PHYSICS|Exercise Fill In The Blanks|7 Videos

  • RIGID BODY DYNAMICS 1

    CENGAGE PHYSICS|Exercise Integer|11 Videos

  • SOUND WAVES AND DOPPLER EFFECT

    CENGAGE PHYSICS|Exercise Integer|16 Videos

Similar Questions

Explore conceptually related problems

A ring rotates with angular velocity omega about an axis perpendicular to the plane of the ring passing through the center of the ring.A constant magnetic field B exists parallel to the axis.Find the emf induced in the ring.

Radius of gyration of disc rotating about an axis perpendicular to its plane passing through through its centre is (If R is the radius of disc)

Knowledge Check

  • A triangular plate of uniform thickness and density is made to rotate about an axis perpendicular to the plane of the paper and (i) passing through A , (ii) passing through B , by the application of some force F at C (mid - point AB) as shown in the figure. In which case angular acceleration is more ? .

    A
    In case (i)
    B
    In case (ii)
    C
    Both (i) and (ii)
    D
    None of these

  • The M.L. of a uniform disc about the diameter is 1. Its M.I. about an axis perpendicular to its plane and passing through a point on its rim is

    A
    4I
    B
    5I
    C
    6I
    D
    I

  • Consider a uniform square plate of of side and mass m . The moment of inertia of this plate about an axis perpendicular to its plane and passing through one of its corners is -

    A
    `(5)/(6) ma^(2)`
    B
    `(1)/(12) ma^(2)`
    C
    `(7)/(12) ma^(2)`
    D
    `(2)/(3) ma^(2)`

    • Similar Questions

    Explore conceptually related problems

    Consider a uniform square plate of side 'a' and mass 'm'. The moment of inertia of this plate about an axis perpendicular to its plane and passing through one of its corners is

    Circular disc of mass 2 kg and radius 1 m is rotating about an axis perpendicular to its plane and passing through its centre of mass with a rotational kinetic energy of 8 J. The angular momentum is (Js) is

    A uniform triangular plate ABC of moment of mass m and inertia I (about an axis passing through A and perpendicular to plane of the plate) can rotate freely in the vertical plane about point 'A' as shown in figure. The plate is released from the position shown in the figure. Line AB is horizontal. The acceleration of centre of mass just after the release of plate is

    If moment of inertia of disc about the diameter is given as 1, then the moment of inertia of the same disc about an axis perpendicular to its plane and passing through its rim is

    Equation of the plane passing through point P(a,b,c) and perpendicular to OP is

    Home
    Profile