He's hitting the steel fork harder and he's moving the carbon fork backwards. That's about as scientific as that hologram bracelet test.
It's clearly not science, but the carbon fork is only moving back more than the steel one because it has half the inertia. Same impulse + half inertia = double recoil velocity.
It's clearly not science, but the carbon fork is only moving back more than the steel one because it has half the inertia. Same impulse + half inertia = double recoil velocity.