Question: A flywheel is spinning with an angular velocity of 12 rad/s. If it experiences a constant angular deceleration of 3 rad/s², how long will it take to come to rest?

Options:

1. 2 s
2. 4 s
3. 6 s
4. 8 s

Correct Answer: 6 s

Solution:

Using ω = ω₀ + αt, we set ω = 0, thus 0 = 12 rad/s - 3 rad/s² * t, giving t = 4 s.