How to create force of 3000 joules to push iron ball of 100gm?

[aman patel]

Respected all my bros,,
I want to creat force of 3000 joul to push the iron ball of 100 gm? The ball should go straight upto 10 meters at speed of 700 miles per sec.

 

[Dr. Courtney]

http://www.technologyreview.com/view/514636/us-air-force-measures-potato-cannon-muzzle-velocities/

 

[Jeff Rosenbury]

Try a black powder musket? You need a muzzle velocity of about 800 ft/sec to get a muzzle energy of 3000 joules. I'm not sure what the 700 miles a second is about?

But this really isn't a gunsmith website.

 

[aman patel]

thanks dr. courtney..that was really helpfull..:)