<p>Compute the angular velocity (ω) when the arm reaches 45 degrees</p>
<p>equation = ω^2 = ωi^2 + 2α(Δθ)</p>
<p>α = 196.85</p>
<p>what do i use for ωi?</p>
<p>yup yup yup b</p>
<p>does it start at rest?</p>
<p>It might help us answer your question if you give us the whole problem.
I think that question is supposed to be like a continuation to a previous problem.</p>