A Fan Blade,initially at Rest,rotates with a Constant Acceleration of 0.025

question 57

Multiple Choice

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?

• A) 0.025 rad/s
• B) 0.11 rad/s
• C) 0.46 rad/s
• D) 1.2 rad/s

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