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AP EAMCET202316 May 2023Morning ShiftPhysicsMotion in Two DimensionsActual

A flywheel is rotating at a rate of 150 rev / minute . If it slows at constant retardation of rads ⁻² , then the time required for the wheel to come to rest is

Options

  1. A2.5 ~s
  2. B5 ~s
  3. C4 ~s
  4. D6 ~s

Correct answer

C. 4 ~s

Step-by-step solution

Angular velocity of flywheel, =150 rev / minute = 150 2 60 =5 Rad / s Angular acceleration, = rad / s ^2 = ₀+ t The time required far the wheel to come to rest is t = - ₀ = 5 -0 =5 ~s

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