[quote]ORIGINAL: GMMAT
Do you have access to a local bowhsop? They should have a chrono you can shoot through and a digital scale (to measure the weight of your arrows). In the absence of a digital scale.....you can look up the various components that make up your arrow, online, and come up with a guesstimate on total arrow weight.
That's all you need. Arrow weight (total) and arrow speed to figure KE.
Thanks GMMAT.
Yes, I have access to a bowshop. I shoot a BowTech Guardian with a 29" draw, set at 70#. Yesterday I had it chrono'd at 317 fps. I had the arrow weighed on a digital scale at 390 gr.
Then I wanted to know the KE of thatset upso I looked up a KE calculator. Using the one at this link:
http://www.bowhuntinginfo.com/Kinetic%20Energy%20Calculator.htmkinetic energy was 87 ft. lbs. with that scenario.