Does Newtons 3rd law mean that half of the energy is wasted?

Question

This may sound dumb to some folks, but lets say I fire a gun. 1000N of force goes into the bullet, and another 1000N of force goes into my body. Even if i strap the gun to the ground, it will just apply 1000N of force to move the earth by a tiny amount. Because of this, does it mean that it isn’t possible to have 2000N of force going to the bullet with the same parameters as before?

In: Physics

Answer 1

I hate the way physics is taught. *None* of that 1000N goes into moving the Earth. In an ideal world, yes. But in reality, it might dig the gun into the ground, where the energy gets used compacting the soil or whatever. Zero of it moves the planet