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Rigid Body Dynamics: Torque on Wheel MCQ

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Torque on WheelHardQuestion 30317

Question

A wheel (I = 2 kg·m²) is acted on by a net torque of 4 N·m. Its angular acceleration is:
  1. A
    8 rad/s²
  2. B
    2 rad/s²
    Correct
  3. C
    0.5 rad/s²
  4. D
    6 rad/s²

Correct answer

2 rad/s²

Explanation

τ = Iα → α = τ/I = 4/2 = 2 rad/s².

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