本题目来源于试卷: gc physics textbook chapter 3 problems，类别为 IB物理学
[问答题]
Can the magnitude of a vector t(1g0 w t* chm:6obxr6 ixv7ffgqo f3nw; +l:sever 9dk)tmx wi.f bospf)oj1a)/ld3 6s 6e(a) be equal to one of its components, or (b) be less than one of its cd)ewkosj b m)t9o ).1p6 x/3af6 ifdlsomponents?
参考答案: (a) The magnitude of a vector can equal the length of one of its components if the other components of the vector are all 0; i.e. if the vector lies along one of the coordinate axes. (b) The magnitude of a vector can never be less than one of its components, because each component contributes a positive amount to the overall magnitude, through the Pythagorean relationship. The square root of a sum of squares is never less than the absolute value of any individual term.
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