Physics JAMB

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

A. 5 rads-1
B. 6 rads-1
C. 5π rads-1
D. 10π rads-1

Correct Answer:

Option D = 10π rads-1

Explanation

Angular velocity w = 2π f.
But f = frequency no. of oscillations per second.
= 30/6 = 5Hz.
therefore W = 2π x 5
= 10π rads-1

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