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What is the result when î + 14ĵ is multiplied by √49?

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in Physics – Class 11 by (74.2k points)
What is the result when î + 14ĵ is multiplied by √49?

(a) 7î + 98ĵ

(b) 98î + 14ĵ

(c) 7î + 98ĵ

(d) (î + 7ĵ)*√49

This question was posed to me in semester exam.

I would like to ask this question from Motion in a Plane topic in section Motion in a Plane of Physics – Class 11

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Best answer
Right option is (a) 7î + 98ĵ

Explanation: \(\sqrt{49}\) = 7. When î + 14ĵ is multiplied by 7, we get 7î + 98ĵ as the answer. Hence, 7î + 98ĵ is the correct answer.

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