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I've just started looking at SR and have got stuck with the first problem that considers 2D motion. I'm trying to work out the angle of tilt of a bar which is horizontal in one frame but moving horizontally and vertically wrt a second frame. I can't seem to pin down where the bar is at a point in time in the second frame.

Any advice on the best way to look at this problem?

Thanks

Pero

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# Motion in 2D

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