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Question

Question: \(\overrightarrow{A} = 3\widehat{i} + 4\widehat{j},\) magnitude of \(\overrightarrow{A}\)...

A=3i^+4j^,\overrightarrow{A} = 3\widehat{i} + 4\widehat{j}, magnitude of A\overrightarrow{A}

A

(a) 5

A

(b) 5\sqrt{5}

A

(c) 3

A

(d) 7

Explanation

Solution

(b)

A|\overrightarrow{A}| = 32+42\sqrt{3^{2} + 4^{2}}