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A wheel rotating about a fixed axis has an angular position given by θ = 3 - 2t3 where θ is measured in radia?

A wheel rotating about a fixed axis has an angular position given by θ = 3 - 2t3 where θ is measured in radians and t in seconds. What is the angular acceleration of the wheel at t = 2 s?

-1 rad/s2

-15 rad/s2

-24 rad/s2

-10 rad/s2

2 Answers

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  • ?
    Lv 5
    9 years ago
    Favorite Answer

    θ = 3 - 2t³

    dθ/dt = 0 - 6t²

    d²θ/dt² = -12t

    Evaluated at 2, I get -24 rad/s²

  • 5 years ago

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