A vector has magnitude 14 and is directed opposite to 3î - 4ĵ. Which vector represents it?
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Question

A vector has magnitude 14 and is directed opposite to 3î − 4ĵ. Which vector represents it?

G1 Physics · Accepted Answer

Unit vector opposite to 3î−4ĵ is −(3/5)î+(4/5)ĵ. Multiplying by 14 gives −42/5 î+56/5 ĵ.