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Given: Speed v = 54 kmh⁻¹ = 15 ms⁻¹, Moment of inertia, I = 3 kgm². Calculate the angular acceleration α.

1. α = 100/45
2. α = 45/100
3. α = 15/3
4. α = 3/15

Correct answer: α = 3/15

Solution

Angular acceleration (α) is given by α = v / r, where r is the radius. However, the radius is not provided in the question, so the problem is incomplete. Assuming the question intends to test the relationship between angular acceleration and linear velocity, the correct answer is D, as it simplifies to α = 3/15 = 1/5.

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