Angular velocity and angular frequency

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Angular velocity and angular frequency are related concepts, both measured in radians per second. Angular velocity refers to the rate of change of angular displacement, while angular frequency is specifically associated with uniform circular motion and sinusoidal oscillations. Angular frequency can only be defined when an object rotates with constant angular velocity. The relationship between them is expressed as ω = 2πf, where f is the frequency. Understanding these distinctions is crucial for applications in physics, particularly in circular motion and oscillatory systems.
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Homework Statement




what is the difference between angular velocity and angular frequency?

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The Attempt at a Solution

 
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if angular velocity is given in radian/s, then it is equivalent to angular frequency, but there is a potential catch... because there is a difference between instantaneous angular velocity and average angular velocity... and one can only define an angular frequency if a body rotates with constant angular velocity. In which case \omega = \frac{d\phi}{dt}=2\pi f
 
Simply put though, one is ascociated with angular motion, circular motion is the most fundamental example.
The other is associated with sinusodial oscillations whether it is simple harmonic motion or variations in alternating current.
 
thanks a lot for replying to my questions
 
Thread 'Correct statement about size of wire to produce larger extension'
The answer is (B) but I don't really understand why. Based on formula of Young Modulus: $$x=\frac{FL}{AE}$$ The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A## I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...

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