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MHT CET20228 Aug 2022Evening ShiftPhysicsMotion in Two DimensionsActual

A particle is moving along a circular path with constant speed and centripetal acceleration a . If the speed is doubled, the ratio of its acceleration after and before the change is

Options

  1. A2:1
  2. B4:1
  3. C3:1
  4. D1:4

Correct answer

B. 4:1

Step-by-step solution

aligned & Centripetal acceleration = v^2 R & a v^2 aligned If the speed is doubled, then the ratio of its acceleration after and before are in 4: 1 ratio.

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