Vector with magnitude A and direction B

Context: Undergrad
Thread starter 5t34lth
Start date Oct 5, 2011
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Direction Magnitude Vector

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5t34lth

Thread starter
Oct 5, 2011

Let's say you are given two vectors, A and B.
How would you find a new vector with the same magnitude as A and the same direction as B. I don't understand this concept. I tried approaching it using vector projections but it didn't feel right.

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LCKurtz

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Homework Helper

Oct 5, 2011

Divide B by its length to make it a unit vector. Then multiply it by the length of A.

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Vector with magnitude A and direction B

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