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A vector, 7 units from the origin, along the X axis, is added to vector 11 units from the origin along the Y axis. What is the resultant vector?

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in Physics – Class 11 by (74.2k points)
A vector, 7 units from the origin, along the X axis, is added to vector 11 units from the origin along the Y axis. What is the resultant vector?

(a) 3î + 8ĵ

(b) 7î + 11ĵ

(c) 11î + 7ĵ

(d) 2î + 7ĵ

This question was addressed to me in an international level competition.

My doubt stems from Vector Addition in section Motion in a Plane of Physics – Class 11

1 Answer

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Best answer
Right option is (b) 7î + 11ĵ

Explanation: The vector 7 units from the origin and along X axis is 7î. The vector 11 units from the origin and along Y axis is 11ĵ. Hence the sum is 7î + 11ĵ.

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