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Find the projection of A on B. Given A = 10j + 3k and B = 4j + 5k.(a) 6(b) 6.25(c) 6.5(d) 6.75I have been asked this question in a job interview.This is a very interesting question from Position and Distance Vectors in portion Vector Analysis and Applications of Electromagnetic Theory

Answer»

The CORRECT option is (B) 6.25

For EXPLANATION: PROJECTION of A on B = (A . B)/|B|. Thus the answer is 40/6.4= 6.25.



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