Recent content by tsafa

Thanks. I finally understand this now.

I'm still chewing on this :) Forgive me because I have been out of college for over 15 years already, I am trying to understand the following calculation: 200 x 2.5 =500 I don't see how you get 16,087.

Ok its starting to become a little more clear. The only part I need to understand now is (200 lbf/lbm). How do does the 100 lb become 200 lbf? I can see that some how it is multiplied by 2, but what is the reason for that? Sorry if you explained it already, but it is not clear to me. Thanks.

A typical modern hunting bow has a 70 lb draw weight. The bows found on the Mary Rose from the 15th century have been determined to have draw-weights ranging from 100 lbs to 180 lbs. To determine the draw-weight a frame is used to hold the bow horizontal and weights are hung from the spring...

I have to take a while to digest this. Thank you very much. The final answer should be somewhere in that area for 300 ft/s per radar detector. How does that convert? The numbers I provided as far as draw weight and drawlenght are realistic for a medieval bow. It should provide enough energy to...

Homework Statement I am trying to calculate the exit velocity of an arrow from a bow. I am an archer and this is for my own personal knowledge so I need to keep the units meaningful in lbs, sec, mph, inches. The end velocity must me in mph. Homework Equations The equation that I have found...