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MHT CET202016 Oct 2020Morning ShiftPhysicsMotion in Two DimensionsActual

A particle is moving in a circle of radius 'R' with constant speed 'V'. The magnitude of average acceleration after half revolution is

Options

  1. A2 V² R
  2. B2 R V²
  3. C2 ~V R ²
  4. D2 R V

Correct answer

A. 2 V² R

Step-by-step solution

Change in speed after half revolution is 2 ~V aligned & Time taken = R V average speed &= 2 V² R aligned

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