Question

The initial position of a bird is (2i+j-2k)m and the final position is (i+3j-2k)m .the magnitude of the displacement is

Answer 1

Answer:

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Answer 2

Answer:√5

Explanation:first we need to find displacement,which is

final position -initial position

Therefore,(i+3j-2k)-(2i+j-2k)=(-i+2j)

And magnitude of that is √(-1)^2+(2)^2

Which is √1+4= √5

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