Question: A fly wheel rotates about a fixed axis and slows down from 300 rpm to 100 rpm in 2 min. Then its angular retardation in rad/min 2 is
(A) 100/ 𝜋
(B) 100
(C) 100 𝜋
(D) 200 𝜋
Answer: option (D)
Solution:
A fly wheel rotates about a fixed axis and slows down from 300 rpm to 100 rpm in 2 min. Then its angular retardation in rad/min 2 is
with
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