When a celling fan is switched off, its ...

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 ?

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

ELECTRIC CURRENT IN CONDUCTORS
D MUKHERJEE|Exercise All Questions|79 Videos

Similar Questions

Explore conceptually related problems

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

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 flywheel rotates about an axis. Due to friction at the axis, it experiences an angular retardation proportional to its angular velocity. If its angular velocity falls to half while it makes n rotations, how many more rotations will it make before coming to rest?

A fly wheel rotates about an axis. Due to friction at the axis, it experiences an angular retardation proportional to its angular velocity. If its angular velocity falls to one fourth while it makes n rotations, how many roations will it make before coming to rest ?

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 ceiling fan is rotating about its own axis with uniform angular velocity omega . The electric current is switched off then due to constant opposing torque is its angular velocity is reduced to (2 omega)/3 as it completes 30 rotations. The number of rotations further it makes before coming to rest is

A circular disc is rotating about its own axis at a 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

When a ceiling fan is switched on, it makes 10 rotations in the first 3 seconds. Assuming a uniform angular acceleration, how many rotation it will make in the next 3 seconds?

When a fan is switched on, it makes 10 rotations in the first 2 s . How many rotations will it make in the next 2 s , assuming uniform angular acceleration?

D MUKHERJEE-CIRCULAR,ROTATIONAL & SIMPLE HARMONIC MOTION-All Questions

A flywheel rotates with a uniform angular acceleration. Its angular ve...
Text Solution
|
When a ceiling fan is switched on, it makes 10 rotations in the first ...
Text Solution
|
When a celling fan is switched off, its angular velocity falls to half...
Text Solution
|
A flywheel rotates about an axis. Due to friction at the axis, it expe...
Text Solution
|
An external device, e.g an electric motor supplies constant power to a...
Text Solution
|
Two identical rods are joined to form an 'X'. The smaller angle betwee...
Text Solution
|
A uniform rod of mass m and length l makes a constant angle theta with...
Text Solution
|
A disc of mass m and radius R has a concentric hole of radius r. Its m...
Text Solution
|
The radius of gyration of a thin disc of radius 4 cm about a diameter ...
Text Solution
|
The radius of gyration of a solid shapere of radius r about a certain ...
Text Solution
|
Three identical rods, each of length L, are joined to form a rigid equ...
Text Solution
|
Let I be the moment of interia of a uniform square plate about an axis...
Text Solution
|
If radius of the earth contracts to half of its present value without ...
Text Solution
|
A man spinning in free space can change the moment of inrtia of his bo...
Text Solution
|
A small ball strikes a stationery uniform rod, which is free to rotate...
Text Solution
|
Three identical solid spheres move down three incline A, B and C are a...
Text Solution
|
A mass m moving with a constant velocity along a line parallel to the ...
Text Solution
|
A stone of mass m tied to the end of a string, is whirled around in a ...
Text Solution
|
For a particle undergoing SHM, the velocity is plotted aginst displace...
Text Solution
|
A particle undergoes SHM with a time period of 2 second in how much ti...
Text Solution
|