Home
Class 12
PHYSICS
The angular velocity of a rotating disk ...

The angular velocity of a rotating disk increases from 2 rad/s to 5 rad/s in 0.5s. What's the disk's average angular acceleration?

Text Solution

AI Generated Solution

To find the average angular acceleration of the rotating disk, we can follow these steps: ### Step 1: Identify the given values - Initial angular velocity (\( \omega_1 \)): 2 rad/s - Final angular velocity (\( \omega_2 \)): 5 rad/s - Time interval (\( t \)): 0.5 s ### Step 2: Use the formula for average angular acceleration ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CURVED AND ROTATIONAL MOTION

    PRINCETON|Exercise COMPREHENSIVE DRILL|11 Videos

  • HEAT AND THERMODYNAMICS

    PRINCETON|Exercise COMPREHENSIVE DRILL|10 Videos

Similar Questions

Explore conceptually related problems

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 ?

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 ?

Knowledge Check

  • The angular speed of a motor wheel is increased from 1200 rpm to 3120 rpm in 16 seconds. The angular acceleration of the motor wheel is a) 2 π rads−2 b) 4 π rads−2 c) 6 π rads−2 d) 8 π rads−2

    A
    `2 pi rad s^(-2)`
    B
    `4pi rad s^(-2)`
    C
    `6pi rad s^(-2)`
    D
    `8pi rad s^(-2)`

    • Similar Questions

    Explore conceptually related problems

    The angular velocity of a wheel rotating with constant angular acceleration, changes from 2 rad/s to 6 rad/s in a time interval of 31.4 s. The number of rotations made by the wheel in this interval of time is

    The angular velocity of a flywheel change from 6 rad s^(-1) to 18 rad s^(-1) in 6 seconds. Calculate its angular acceleration.

    The angular velocity of a flywheel change from 6 rad s^(-1) to 18 rad s^(-1) in 6 seconds. Calculate its angular acceleration.

    The tangential acceleration of a particle moving in a circular path of radius 5 cm is 2 m s^-2 . The angular velocity of the particle increases from 10 rad s^-1 to 20 rad s^-1 during some time. Find (a) this duration od time and (b) the number of revolutions completed during this time.

    A flywheel rotates with a uniform angular acceleration. Its angular velocity increases from 20pi rad//s to 40pi rad //s in 10 seconds. How many rotations did it make in this period ?

    the angular velocity omega of a particle varies with time t as omega = 5t^2 + 25 rad/s . the angular acceleration of the particle at t=1 s is

    The angular position of a particle changes from 3 rad to 7 rad in 2 seconds. Calculate the angular velocity of the particle.

    Home
    Profile