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Question: The angle between the two vectors \(\vec { A } = 5 \hat { i } + 5 \hat { j }\) and \(\vec { B } = 5 ...

The angle between the two vectors A⃗=5i^+5j^\vec { A } = 5 \hat { i } + 5 \hat { j } and B⃗=5i^−5j^\vec { B } = 5 \hat { i } - 5 \hat { j }will be

A

Zero

B

45°

C

90°

D

180°

Answer

90°

Explanation

Solution

A⃗⋅B⃗=0\vec { A } \cdot \vec { B } = 0∴ θ=90∘\theta = 90 ^ { \circ }