Then, How can I get a losing energy(frictional or else other)?
In my calculation, the charged energy is about 54.45J(Elec.)
And according to your reply, the projectile's kinetic energy is very small. right?
My purpose : I just thinking about just (kinetic energy, projectile)10J or over.
I'm making a simple railgun.
and I'll charge capacitors(330v, 1000uF) for railgun's power source.
but I just have a question. the railgun's projectile is about 20g, and rail is about 20cm(height)
how can I get the projectile's speed(in end of the rail)?
or projectile's kinetic energy?
(don't...