3 ms·
GP was referring to a distribution of "fixed charges", so it's not possible to transfer momentum to them.
by jbay808 7y ago
GP 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.