- #36
Ibix
Science Advisor
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I'd just want to echo something @vela said upthread: spacetime diagrams are incredibly useful for visualising these problems. They are essentially displacement-time graphs (if you've come across those) with the time axis up the page. You can draw one for each frame and mark events and worldlines on them and they are a great tool for seeing roughly what the solution must be before you start plugging in numbers.