Home
Class 12
PHYSICS
The angular speed of a fly-wheel startin...

The angular speed of a fly-wheel starting from rest reaches a speed of 240 rpm is 4s.Its angular acceleration would be

A

`pi/2 rad/s^2`

B

`2pi` rad/s^2`

C

`pi rad/s^2`

D

`4pi rad/s^2`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

What is the angular speed of fly wheel of radius 11cm making 420 revolution per minute.

A body has angular velocity of 4 rad/s at t= 4 seconds and at t =9 seconds the angular velocity is observed to be 22 rad/s. determine the angular acceleration of the body.

Starting from the rest , a body P travels with a uniform acceleration of 4m/s^2 and starting from rest from the same point 4s later , a body Q travels with a uniform acceleration of 16m/s_2 in the same direction as P . Find when and where they meet .

Fly wheel rotating about it's axis slows down from 300 rpm to 100 rpm in two minutes, What is the Angular acceleration ?