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MHT CET202016 Oct 2020Evening ShiftPhysicsMotion in Two DimensionsActual

A particle starting from rest moves along the circumference of a circle of radius ' r ^ with angular acceleration ' ^ '. The magnitude of the average velocity, in the time it completes the small angular displacement ' ' is

Options

  1. Ar ( 2 )²
  2. Br ( 2 )
  3. Cr ( 2 )²
  4. Dr ( 2 )^ 1 2

Correct answer

D. r ( 2 )^ 1 2

Step-by-step solution

(A) S=r = ₀ t+ 1 2 t² t= 2 Average velocity = displacement time = r 2 =r 2 =r 2

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