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Variable Angular Acceleration

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A disk, initially rotating with an angular velocity of 25 rad/s, experiences an angular acceleration given by α=−0.5ω\alpha = -0.5\omega. How much time is required for the disk to come to rest?

A

Infinity (the disk never truly stops)

B

50 s

C

2 ln(2) s ≈ 2.77 s

D

2 s

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