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physics!!

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student:
Oh.. i see.
But if we resolve 3 in the direction of 12 (12+3cos54).. is that a slight variation of answer or a wrong way?

Amr Fouad:
a wrong way.. 3 is already in a horizontal direction..dont confuse your self

T.Q:

--- Quote from: student on April 15, 2010, 12:00:12 pm ---Oh.. i see.
But if we resolve 3 in the direction of 12 (12+3cos54).. is that a slight variation of answer or a wrong way?

--- End quote ---


u cant resolve 3  , because  3  is in the horizontal direction  

but the 12 , can be resolved in the vertical and horizontal directions  

student:
If I take the direction of 12 as y-axis?
And add the component of 3 in that direction?

T.Q:

--- Quote from: student on April 15, 2010, 12:16:14 pm ---If I take the direction of 12 as y-axis?
And add the component of 3 in that direction?

--- End quote ---

u cant , the direction of the y-axis is vertical

12 is not vertical 

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