Hello All I hope someone can help.(adsbygoogle = window.adsbygoogle || []).push({});

I am dropping a weight on a bar to find out deflection of this bar. When I drop a 72lbs weight @ 1.0meter from the bar, the impact energy is (32.7KG x 9.8m/s2 x 1.0m) right? = ~311 N/m

The total deflection when I drop this weight on the bar is 80mm.

On a static deflection test, I am placing the bar simply supported with the same condition as above and then I slowly apply a load with a shop press and a load cell tells me what the load is. When the exactly same bar reaches the 80mm, the display shows 1500lbs, that means I need 1500lbs to deflect the bar the same distance a weight of 72lbs dropped at 1m needs.

How can I co-relate these two number,s 1500lbs and 311 N/m? Does it mean that the 311N/m is equal 1500lbs?

Once I found this relationship, I plan to perform only one of the test, make sense?

Thanks!

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# Homework Help: Energy created by a falling object

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