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A particle in circular motion performs 30 oscil... - JAMB Physics 2002 Question

A particle in circular motion performs 30 oscillation in 6 seconds. Its angular velocity is
A
5 rad s-1
B
6 rad s-1
C
5π rad s-1
D
10π rad s-1
correct option: d

Angular velocity w = 2π f.

But f = frequency no. of oscillations per second.

 = 30/6 = 5Hz.<br />

therefore W = 2π x 5

        = 10π rad. s<sup>-1</sup>
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