HuntingNet.com Forums - Kinetic energy

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Hoytshooter4life

03-13-2007 08:46 PM

Kinetic energy

guys i feel dumb for asking but what is the equation for figuring out kinetic energy, i shoot a vectrix at 28" 67* 387 grain arrow(give or take a grain or two) @ 287 fps, i was just curious what kind a kinetic energy im producing?

Washington Hunter

03-13-2007 08:49 PM

RE: Kinetic energy

70.8ft/lbs

Bullot Hole Bailey

03-13-2007 08:49 PM

RE: Kinetic energy

Not an expert but I think thats almost 70 KE may be wrong your best bet is on google

buckeye

03-13-2007 09:42 PM

RE: Kinetic energy

Formula for kinetic energy...... Take your total arrow weight in grains and divide it by 450435. Then Multiply that by the speed of your bow squared.

Example: 387 grains/ 450435X 287fpsX 287fps= 70.7689 ft. lb. of KE

southerncross

03-13-2007 10:29 PM

RE: Kinetic energy

lol. Kinetic Energy = 1/2 x m x v^2

southerncross

03-13-2007 10:30 PM

RE: Kinetic energy

You got it buckeyebuckhntr, I didn't see your post, my bad man.

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