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The period of oscillation of a particle executing simple harmonic motion is 4\(\pi\) seconds. If...

Physics
WAEC 2000

The period of oscillation of a particle executing simple harmonic motion is 4\(\pi\) seconds. If the amplitude of oscillation is 3.0m. Calculate the maximum speed of the particle.

  • A. 1.5ms-1
  • B. 3.0ms-1
  • C. 4.5ms-1
  • D. 6.0ms-1
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Correct Answer: Option A
Explanation

V\(_{max}\) = ωr

ω = 2\(\pi\)f but f = \(\frac{1}{T}\)

ω =  \(\frac{2\pi}{T}\) =  \(\frac{2\pi}{4\pi}\) ( since T = 4\(\pi\) given)

ω = 0.5rads/secs

V\(_{max}\) = ωr = 0.5 x 3 = 1.5m/s ( r = 3cm given)


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