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AP EAMCET201823 Apr 2018Morning ShiftPhysicsRotational MotionActual

A light rope is wound around a hollow cylinder of mass 4 ~kg and radius 40 ~cm . If the rope is pulled with a force of 40 ~N , its angular acceleration is

Options

  1. A0.40 rads ⁻²
  2. B0.25 rads ⁻²
  3. C25 rads ⁻²
  4. D40 rads ⁻²

Correct answer

C. 25 rads ⁻²

Step-by-step solution

Torque, =I aligned F r & =M r^2 40 0.4 & =4 (0.4)^2 16 & =0.64 & = 16 0.64 & = 16 64 100 & =25 rad / s ^2 aligned

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