Let →u, →v, →w be such that |→u| = 1, |→v| = 2, |→w| = 3 . If the projection →v along →u is equal to that of →w along →u and →v, →w are perpendicular to each other , then |→u→v+→w| equals
A
√14
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B
√7
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C
2
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D
14
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