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torque problem!

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A spring (k =819N/m) is hanging from the ceiling of an elevator, and a 5.1-kg object is attached to the lower end. By how much does the spring stretch (relative to its unstrained length) when the elevator is accelerating upward at a = 0.46m/s^2?

  • torque problem! - ,

    Torque? How do you think that?

    forceonspring=kx=m(a+g)
    x=1/k (m(acceleration +g)
    solve for x

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