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A 0.200 m uniform bar has a mass of 0.770 kg and is released from rest in the vertical position, as the drawing indicates. The spring is initially unstrained and has a spring constant of k = 28.0 N/m. Find the tangential speed with which end A strikes the horizontal surface.

(if the img doesnt work please enter http://www.webassign.net/CJ/10_60.gif into your browser)

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I've been struggling with this problems for quite a while now.

I know that:

[tex]x = \theta r[/tex]

[tex]v _{f} = \frac{x}{t}[/tex]

Beyond these two simple steps I can't figure anything out... i tried experimenting by integrating with respect to theta and x, but it still didnt work out... any help would be great. Thanks.

(if the img doesnt work please enter http://www.webassign.net/CJ/10_60.gif into your browser)

---

I've been struggling with this problems for quite a while now.

I know that:

[tex]x = \theta r[/tex]

[tex]v _{f} = \frac{x}{t}[/tex]

Beyond these two simple steps I can't figure anything out... i tried experimenting by integrating with respect to theta and x, but it still didnt work out... any help would be great. Thanks.

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