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Circular Motion: Centripetal Acceleration — RPM MCQ

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Centripetal Acceleration — RPMMediumQuestion 30618

Question

A wheel rotates at 600 rpm. A point on the rim at radius 0.5 m has centripetal acceleration:
  1. A
    π² m/s²
  2. B
    100π² m/s²
  3. C
    200π² m/s²
    Correct
  4. D
    50π² m/s²

Correct answer

200π² m/s²

Explanation

ω = 600×2π/60 = 20π rad/s. a_c = ω²r = (20π)²×0.5 = 400π²×0.5 = 200π² m/s².

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