Question Detail
Question
A grindstone starts with angular velocity 4.6 rad/s and angular acceleration 0.35 rad/s². When will angular position reach 5 rad?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Using θ = ω₀t + ½αt² gives t ≈ 4.3 s.
Hint
Rotational equivalent of SUVAT equation.