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All Mechanics DOUBTS HERE!!!

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astarmathsandphysics:
Didn't read the question properly.
I did for i+j at bottom of page.

WARRIOR:

--- Quote from: astarmathsandphysics on March 02, 2012, 10:21:24 am ---Didn't read the question properly.
I did for i+j at bottom of page.


--- End quote ---
Your answers are right sir ! but how is 12i=3i-6j + c => c= -3i+6j ?????
isnt is supposed to be 9i+6j?

astarmathsandphysics:
Now I get 9i+18j after checking

WARRIOR:

--- Quote from: astarmathsandphysics on March 02, 2012, 10:48:47 am ---Now I get 9i+18j after checking

--- End quote ---

I got the same at first , but i checked the answer at the back it was exactly like this

( 3t(sq) + 9) i  + ( 4t(cubed) -10t + 6 ) j

Very weird book !!!!

anyway thanks a million for your answers and explanations !  + rep!

astarmathsandphysics:
BOOK is correct!!!
When I did it the first time I ignored the 12i
and the second time I got 12i+6j=18j

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