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ctwokay
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Homework Statement
A simple pendulum with mass m = 1.7 kg and length L = 2.42 m hangs from the ceiling. It is pulled back to an small angle of θ = 8.6° from the vertical and released at t = 0.
Qn: What is the maximum speed of the pendulum?
Homework Equations
θ=θmax*cos(ωt+∅)
The Attempt at a Solution
i derivative the equation i got θ=θmax*ω*sin(ωt)
the ω outside i know is angular velocity √(g/L) but inside ω is √(k/m)
where do i find k constant in this question?