5 ms·
That doesn't sound right to me. Imagine I have a proton and an anti proton, and I fire the proton at the anti proton along a perfect straight line. Classically,
by doubleunplussed 7y ago
That doesn't sound right to me. Imagine I have a proton and an anti proton, and I fire the proton at the anti proton along a perfect straight line. Classically, and ignoring nuclear forces, the proton will end up stationary and the anti proton will instead be launched away, just like a direct collision between pool balls leaving the cue ball stationary.
- jbay808 7y agoGP was referring to a distribution of "fixed charges", so it's not possible to transfer momentum to them.
- doubleunplussed 7y agoWell a spacecraft is not fixed, you can push it around, which is the whole point of a reaction drive. An unmovable spacecraft would have to have infinite mass. So the assumption does not apply.