Question

​​​a fly wheel rotating about its own axis at an angular velocity 11 rad s-1 , its angular velocity in revolution per minute is what?

Answer 1

Answer:

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ω = 11 rad / s = 2πn

∴ n = 11 / 2π = 11 x 22 / 2 x 7

      = 7 / 4 rps

So , 1 minute = 60 secs

      =  $\frac{7}{4} * 60$

      = 7 x 15 = 105 rpm

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