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25-11-2021
Physics

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3. A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is its angular speed at the instant it goes through an angular displacement of 4.2 rad

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Аноним Аноним

25-11-2021

Answer:

Explanation:

ωf² = ωi² + 2αθ

ωf² = 0² + 2(0.025)(4.2)

ωf² = 0.21

ωf = 0.4582...

ωf = 0.46 rad/s

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