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A particle in circular motion performs 30 oscillation in 6 seconds. Its angular velocity is

Physics
JAMB 2002
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
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Correct Answer: Option D
Explanation
Angular velocity w = 2π f.
But f = frequency no. of oscillations per second.
= 30/6 = 5Hz.
therefore W = 2π x 5
= 10π rad. s-1
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