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Physics Chemistry

Entry Test MCQ :: Vectors And Equilibrium

  Which one is not correct for a vector A= 2??2 i^ + ??2 j^?
[A]. has direction ?=45? with x-axis[B]. has magnitude 2
[C]. has magnitude 2 and direction ?=45? with y-axis[D]. has magnitude -2

Answer: Option D
aleem said:    
 
Can any one explain this
ayesha said:    
 
explain please
kaseem said:    
 
Show explanation
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