1.

Adding î + 77ĵ and 7î + ĵ gives ______(a) 8î + 78ĵ(b) 0î + 76ĵ(c) î + 74ĵ(d) 78î + 8ĵI had been asked this question in an interview for job.This interesting question is from Vector Addition topic in portion Motion in a Plane of Physics – Class 11

Answer»

The correct CHOICE is (a) 8î + 78ĵ

EXPLANATION: When î + 77ĵ is ADDED to 7î + ĵ, the corresponding components get added. HENCE, the ANSWER is 8î + 78ĵ.



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