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MHT CET202124 Sep 2021Evening ShiftPhysicsMotion in Two DimensionsActual

A particle is moving along the 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. A3:1
  2. B1:4
  3. C2:1
  4. D4:1

Correct answer

D. 4:1

Step-by-step solution

Centripetal acceleration is given by aligned & a = v ^2 r a v ^2 & a ₂ a ₁ = ( v ₂ v ₁ )^2=(2)^2=4 aligned

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