Home
Class 11
PHYSICS
A disc is rotaing with an angular veloci...

A disc is rotaing with an angular velocity `omega_(0)`. A constant retarding torque is applied on it to stop the disc. The angular velocity becomes `(omega_(0))/(2)` after n rotations. How many more rotations will it make before coming to rest ?

A

`n`

B

`2n`

C

`n"/"2`

D

`n"/"3`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

When a celling fan is switched off, its angular velocity falls to half while it makes 36 rotations. How many more rotations will it make before coming to rest ?

When a celling fan is switched off, its angular velocity falls to half while it makes 36 rotations. How many more rotations will it make before coming to rest ?

A rod is rotating with angular velocity omega about axis AB. Find costheta .

A disc is rotating with angular velocity omega . If a child sits on it, what is conserved?

When a ceiling fan is switched off, its angular velocity reduces to 50% while it makes 36 rotations. How many more rotations will it make before coming to rest?(Assume uniform angular retardation)

A body rotating with angular velocity omega stops after rotating for 2 sec. The torque necessary for this is?

A circular disc is rotating about its own axis at uniform angular velocity omega . The disc is subjected to uniform angular retardation by which its angular velocity is decreased to omega//2 during 120 rotations., The number of rotations further made by it before coming to rest is

A circular disc is rotating about its own axis at an angular velocity omega . If P is exact midpoint of dise between axis and rim of disc then angular velocity of Pis

A constant power is suppied to a rotating disc. The relationship between the angular velocity (omega) of the disc and number of rotations (n) made by the disc is governed by

As per the shown figure the central solid cylinder starts with initial angular velocity omega_(0) Find the time after which the angular velocity becomes half.