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MHT CET 2023 (14 May, Shift 1) · Angular Variables

Angular Variables question from MHT CET 2023 (14 May, Shift 1)

Q24MHT CET 2023 · 14 MAY · SHIFT 1Medium

Angular Variables

A particle moves around a circular path of radius 'rr' with uniform speed 'VV'. After moving half the circle, the average acceleration of the particle is

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Answer: (c)

  1. After half a circle the velocity reverses: ∣Δv⃗∣=2V|\Delta \vec v| = 2V.
  2. Time taken t=πrVt = \frac{\pi r}{V}.
  3. aavg=2Vπr/V=2V2πra_{avg} = \frac{2V}{\pi r / V} = \frac{2V^2}{\pi r}.
  4. So the answer is (c) 2V2πr\frac{2V^2}{\pi r}.
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