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Question 6107
NEET Physics · Medium

System of Particles & Rotational Motion: Angular Kinematics MCQ

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Angular KinematicsMediumQuestion 6107

Question

A wheel starts from rest and attains ω = 20 rad/s in 4 s. Angular acceleration:
  1. A
    5 rad/s²
    Correct
  2. B
    80 rad/s²
  3. C
    80 rad/s
  4. D
    4 rad/s²

Correct answer

5 rad/s²

Explanation

α = Δω/t = 20/4 = 5 rad/s².

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