Answer the word correct or wrong with correcting the error, any. 1-The r; is along the direction of v; or a .also that v and rf are usually in the same direction. 2- Ā. B = Zero implies that Cos 90=0,...

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Extracted text: Answer the word correct or wrong with correcting the error, any. 1-The r; is along the direction of v; or a .also that v and rf are usually in the same direction. 2- Ā. B = Zero implies that Cos 90=0, which is the condition of perpendicularity of two vectors.