Asked by Venkat phy lect | 21st Jul, 2013, 11:44: AM

Expert Answer:

If a vector is in horizontal direction i.e. x axis, then its vertical component i.e. along y axis would be 0. 
Let A be a vector in i direction, hence X = ai where a is the magnitude of the vector. 
Now, its component in the y direction would be Xcos90 = ai x 0 = 0. 

Answered by  | 21st Jul, 2013, 05:40: PM

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