Question

5) If vectors A and B I are
perpendicular to each other, then
which of the following statements is
true?​

Answer 1

Answer:

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Answer 2

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Answer:

R = √p^2 + q^2

here R is the resultant

p and q are the vectors you can substituted as a and b

so you get R = √a^2 + b^2

here when the two vectors are mutually perpendicular to each other then that ø will be 90 degree

cos 90° = 0

so 2PQcosø gets cancelled

the value becomes as √p^2 + q^2

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