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Acceleration of Uranium 238 ion through a potential difference
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[QUOTE="haruspex, post: 6848959, member: 334404"] We are so used to thinking of vectors in Cartesian coordinates. But go back to the statement that vectors have "magnitude and direction". That fits more naturally with polar coordinates. In one dimension, the direction consists of the sign. That's as magnitude x direction, but as scalar x 1D vector it's ##\mathbf{v}=-3~(\mathbf{\hat x})~##m/s. No, you should interpret it as either magnitude 3, direction -, or as scalar -3 on whatever oriented axis has been specified (like, 'up'). [/QUOTE]
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Acceleration of Uranium 238 ion through a potential difference
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