Physics Two Dimensional Motion Question 270

Question: The angular speed of a fly wheel making 120 revolutions/minute is

[CBSE PMT 1995; AFMC 2002]

Options:

A) $ 2\pi rad/s $

B)$ 4{{\pi }^{2}}rad/s $

C) $ \pi rad/s $

D)$ 4\pi rad/s $

Show Answer

Answer:

Correct Answer: D

Solution:

$ 120rev/\min =120\times \frac{2\pi }{60}rad/\sec =4\pi rad/\sec $



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