4 ms·
> sorry for this daft question No need to feel dumb about asking questions, that's how we all learn :) With regards to your question, looks like someone answe
by cercatrova 6y ago
> sorry for this daft question
No need to feel dumb about asking questions, that's how we all learn :)
With regards to your question, looks like someone answered this in another comment chain: https://news.ycombinator.com/item?id=27096279 https://news.ycombinator.com/item?id=27096279
- 123pie123 6y agothanks, so the rock that was heading towards earth at 1 m/s will technically not accelerate - with in its own reference point, but the rock will accelerate to the earth (from the earths reference point) slight change of question, if the rock was heading directly in a straight line towards earth at 1 m/s, as the rock nears the earth it will accelerate (from the earths perpective) where has the extra energy come from? before it was heading at 1 m/s, but as it hits earth it will be travelling much faster
- drdeca 6y agoFrom the gravitational potential energy, I would think.