Question

Asked Feb 11, 2019

Two vectors vector A and vector B have precisely equal magnitudes. In order for the magnitude of vector A + vector B to be 110 times larger than the magnitude of vector A - vector B, what must be the angle between them?

Step 1

Magnitude of *A *+ *B* is 110 times the magnitude of *A *– *B*. Therefore,

Step 2

Squaring both sides and using the fact that the magnitudes of *A* and *B* are equal,

Step 3

Re-arranging the abo...

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