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two vectors A and B have components (0,1) and (-1,3), respectively. What is magnitude of the sum of these two vectors?

A3.2
B4.1
C3.9
D2.8

Verified Answer :

scme1702

We first add the x and y components of the vector to get the x and y components of the resultant vector:
(0 - 1, 1 + 3)
-1 , 4
magnitude = √(1² + 4²)
magnitude = 4.12
The answer is B

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