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AP EAMCET202317 May 2023Evening ShiftPhysicsMotion in Two DimensionsActual

A body is moving with a uniform speed of 20 ~ms ⁻¹ on a horizontal circle. The change in velocity of the body in half revolution is

Options

  1. A20 ~ms ⁻¹
  2. B10 ~ms ⁻¹
  3. C40 ~ms ⁻¹
  4. D20 2 ~ms ⁻¹

Correct answer

C. 40 ~ms ⁻¹

Step-by-step solution

Speed of body, v=20 ~m / s Change in velocity in half revolution aligned & v= v ₂- v ₁=-v j -v j =-2 v j & | v|=2 v=2 20=40 ~m / s aligned

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