Momentum

[texas bound]

How do you figure how your momentum your arrow?

[bowhuntntxn]

Mass X velocity =momentum

[texas bound]

so weight of arrow x fps

[enewman]

Mass x fps. Devide by 225418. I believe. The are calculators on the web easy to find

[bowhuntntxn]

http://www.physicsclassroom.com/class/momentum/u4l1a.cfm

There is no division required. That is for kinetic energy, not momentum.

[texas bound]

What is a good momentum for deer and hogs?

[bphillips]

Mass x fps. Devide by 225418. I believe. The are calculators on the web easy to find

This is correct if you use your weight in grains and speed in ft/sec

[enewman]

What is a good momentum for deer and hogs?

This is a question I would like to know. If you read Dr ashby on his writings about momentum. He stated that .57. I believe this was for big game in Africa. I know my son has around .4 momentum and has taken hogs and rams no problems

[enewman]

This is correct if you use your weight in grains and speed in ft/sec

Thanks for the correction I was thinking that since we where talking about arrows I assumed mass would be in grains.

[texas bound]

Im right at .48 and .49 depending on arrow.

[enewman]

Im right at .48 and .49 depending on arrow.

I would think that will work. Remember it's hard a get a pass thru on a big boar with a thick shield. All yo have o get is both lungs

[texas bound]

next year Im changing arrows to a heavier arrow so I can get more out of it.

[Mudslinger]

Here you go, KE and Momentum in the same article:

http://archeryreport.com/2009/11/arrow-kinetic-energy-momentum-archer/

[bphillips]

Thanks for the correction I was thinking that since we where talking about arrows I assumed mass would be in grains.

Not correcting just letting him know so he didnt multiply gr by FPS and end up over 100,000 haha... You had it right by what we use to measure as archers

[bphillips]

Im right at .48 and .49 depending on arrow.

Thats more than enough for that game... What is that? A 400gr arrow at around 280fps?